基本信息
Only + 状语(单词, 词组, 从句) + 句子(主谓部分倒装).
Only then did I realize that I left my wallet at home.
Only in this way can you finish the task in such a short time.
Only after the war was over was he able to get back to work.
doing 值得一做
2. a. be worth sth. 值…
forty dollars 值四十美元
