must have been a fool
常见例句
- He must have been a fool, wasn't he?
他一定是个笨蛋，不是吗？
http://140.131.84.144 - It's easy to fool yourself into thinking, "Well, that particular 'and' I asked them to circle must have been a very important 'and' indeed."
很容易安慰自己说，"呃，那个我让他们圈的特别的'and'一定是个非常重要的'and'。" 返回 must have been a fool