...s eat too much protein every day, twice as much as they actually need. 我可以假设把twice as much放一边,先不理解吗?Americans eat too much protein,as they actually need.Americans eat too much protein as they need.这样可以当成定语从句,觉得这样子理解起来比较...
Please be careful when you are drinking coffee in case you ( ) the new carpet.A. stainB. spotC. pollute答案是A.但是spot作及物动词,也有stain的意思,同理,pollute 也可以的。请问老师B和C是否也可以?