| 例句 |
I don't know for sure.我不太肯定。I know for sure that I won't be able to go to the party.我非常肯定自己不能参加这个晚会。I think I can come but I won't commit myself till I know for sure.我想我能来，但在确定之前我不能保证。It could be this week but it might be much later. We don't know for sure.可能是这个星期，也可能要过很久，我们不是很清楚。No one knows for sure why adolescence is unique to humans.没人确切知道为什么只有人类才会经历青春期。He thinks he got the job but he doesn't know for sure.他觉得他得到了那份工作，但他不确定。No one knows for sure what happened.没人知道到底发生了什么。No one knows for sure what happened to Bill.没有人确切知道比尔出了什么事。 |