英语句子中，逗号后面什么时候用ing形式

动词加ing形式是把动词改成了动名词比如swim --swimming。
I like to swim.这里swim乃动词。
I like swimmin。这里swimming偏名次属性。
因为英语中，一句话 一般允许一个谓语（动词充当），但一句话不止一个动词，一旦前面一个动词做了谓语 其他动词只好做非谓语（即to do /doing/done)。
例如：JIM喊我去打球这里有2个动词喊和打。
英文翻译为JIM asks me to play ball  (ask做谓语play就只好做非谓语就变成to ask了)。
1、正在进行时中,谓语动词后加ing。如:Im playing football。
2.当动词做主语时，要用动名词，即动词加ing。如：Making salad。
3.--些特殊表达.动词后再用动词要用动名词.如:enjoydoingsth。
practice doing sth. mind doing sth. finish doing sth. keep doing sth。等
4、当一个句子已经有一个动词了。
5、一些固定的词和词组后面比如。
feel like doing、risk doing、it is no use doing。
列举一些常见的后面加doing的: keep enjoy excuse practice mind
avoid、appreciate risk consider cant help give up imagine finish、think of suggest hear of be fond of、insist on、aim at。其实就是大多数介词后面
6、表示主动。
7、表示进行。

扩展资料：
动词ing形式变化规则：
1、–ing分词的构成主动形式 被动形式 doing being done 一般式 完成式 having done having been done 否定式：
not+--ing/not having(been) done 不是 having not (been) done。
2.一般式和完成式的用法--ing分词的一般式表示和谓语动词所表示的动作同时进行的一个动作；完成式表示先于谓语动词动作之前的一个动作。
如： Walking along the street, he caught sight of an old friend of his. Not having studied his lessons very hard, he failed the examinations.
3.---ing分词的被动式当－ing分词与它的逻辑主语构成被动关系时，需要用被动形式。根据－ing 分词动作发生的时间，－ing分词的被动式分为一般被动式(being done)和完成被动式(having been done),如：
The question being discussed is very important. Having been praised by the teacher, he works even harder.
4.---ing分词的句法功能：
1)---ing分词作主语 Learning English has become a part of his life. It is no use trying to repair the ship. These holes are much too big. 
2) ---ing分词作宾语 以下动词必须跟---ing分词作宾语：admit/ appreciate/avoid/consider/delay/deny/dislike/enjoy /excuse/finish/image。
keep/mind/ miss/postpone/put off/practise/risk/stand/ stop/ suggest / give up/cannot help。

英语翻译含税，不含税，英文怎么说

价格是否含税应在价格之后注上如下内容： 含税价格： （VAT　inclusive）　（含增值税），“VAT”为“Value　Added　Tax”的缩写。 （GST　inclusive）　（含商品及服务税），“GST”为“Goods　and　Services　Tax”的缩写。 不含税价格： （Tax　excluded）　（不含税） 有时可以把两种价格并列，以便客户作出选择。如： Price：　￥100　per　unit　（Tax　excluded），　or　￥115　per　unit　（GST　inclusive） ［价格：　每件100元（不含税），或每件115元（含商品及服务税）。］ price before/after taxation 税前/后价 price without tax But there is no tax savings on the year s earnings 但是这个年收入是不含税的储蓄。 But there is no tax savings on the year s earnings 但是这个年收入的存款是不含税的。 2 persons , extra bed at 18 euros per night 加床每间夜18欧元。不含税。 We would like to know the price exclusive of tax of your pda 我们想要知道你们的pda不含税的价格。 All prices excl . sales tax 不含税价格:所有价格不含税 All esd prices are fob rmb price without tax ， and the payment terms is l / c 委托人所有价格均为人民币不含税fob价格,定单结算方式为l / c 。 The photo is just for reference . when your order is more than 10 pieces , you can enjoy a wholesale price . the wholesale price is settled , not including tax and shipping fee 所有商品都是以实物拍摄，统一批发价，不含税和运费。款到发货。十件起批，可混批。 According to determined ore dressing technology , we have studied the building of the dressing - works for technology and economy and conclude that if the iron ore dressing - works will be set up , which could produce 138 , 000 tons of iron ore fine at the cost of 204 . 92rmb yuan / mt ( without taxes ) for jisco . its raw material is the lean iron ore and high phosphor content iron ore in stock 根据确定的选矿流程进行了选矿厂方案的技术经济、建厂条件、公辅设施论证，得出：如果投资建厂，可利用黑鹰山堆存贫矿和高磷富矿，每年为酒钢供应成本为204 . 92元吨(不含税)的13 . 8万吨铁精粉，经济效益和社会效益较为显著，建议酒钢公司在资金容许的条件下可以投资黑鹰山选矿厂建设。 Taxation rebate is a mechanism that entitles the enterprises or companies , based on the laws and regulations of a country , to get back some indirect tax from the government after exporting their products , value added tax and excise tax for example , so that they could sell their products in the international market at a more competitive price . generally , the mechanism is implemented in the hope that the export sales of the whole country would be improved , and the macro economic condition could be ameliorated as a result 出口退税是指一个国家根据本国税收法律的规定,对已经报关离境的出口商品,将其在出口前生产和流通各环节已经缴纳的国内增值税或消费税等流转间接税的税款退还给出口企业,使出口商品以不含税的价格进入国际市场,从而促进该国的对外出口贸易,同时调节与控制经济运行的做法。

努力学习英语用英文怎么说

努力学习
1、英文释义 Study hard；work hard；swot at；work hard at sth
2、短语
努力学习中 thanosx
努力学习专业知识 Strive to acquire expertise ; Efforts to learn professional knowledge ; Efforts to learn the knowledge
我们可以努力学习 We can work hard ; We can work to learning ; We can strive to learn
努力学习它 To study it ; Effort to learn it ; strive to learn it
放弃努力学习 Give up trying to learn ; To give up learning ; Abandon the effort to learn
他正在努力学习 He is trying to learn ; He are trying to learn
努力学习/工作 work hard
努力学习各个科目 To study various subjects ; strive to learn various subjects
他很努力学习 He is working hard ; He is very hard learning
3、双语例句
你应该努力学习.
You should study hard.
我们为我们的国家而努力学习。
We study hard for our country.
他认为他应该努力学习。
He thinks he should study hard.
我希望你明白，如果你现在不努力学习，将来只能跟这老园工一样没出息，只能干低贱、卑微的工作！
I hope you can understand that if you do not study hard, you will be as useless as the oldgardener who can only do this humble job!
做每件事开始都不容易的，但是只要你努力学习，会变好的。
Everything is not easy at the beginning, but if you study hard, it will get better.