must have been a fool
常见例句
- He must have been a fool, wasn't he?
他一定是個笨蛋，不是嗎？
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."
很容易安慰自己說，"呃，那個我讓他們圈的特別的'and'一定是個非常重要的'and'。" 返回 must have been a fool