他因此放弃了这个科学实验英文如何表达
我们来分析一下这个句子：
放弃：可用 give up 或 drop
因此：即意为“因为这个原因”= for this reason
所以这句话应译为：
He gave up the scientific experiment for this reason.
楼主下次遇到其他的句子也像这样分析一下，相信你很快就会自己译啦O(∩_∩)O~
英语书面表达
My parents are outstation and only will be back on next month, my grandmother is sicks, i need to take care of her. Besides, the English test is round the corner, so I cant attend your birthday party. Sorry for that and happy birthday to you