? 同義詞
??? 情景例句
Yes? Can I do something for you?
什么事？我能為您效勞嗎？
Speaking of trips,did I ever tell you about the experience I had?
談?wù)撀眯?我曾經(jīng)把我的經(jīng)驗(yàn)告訴你了嗎？
examined a very large number of men working on aircraft carriers:
調(diào)查了許多在航空母艦上工作的人，