| 单词 | be certain of |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔COME FROM〕The rumour is now so widespread, it's difficult to be certain of its origin. 谣言现在已传得人尽皆知，很难弄清楚是从哪里传出来的。朗文写作活用〔certain〕Brazil need to win to be certain of a place in the finals.巴西需要赢得一场胜利来确保晋级决赛。外研社新世纪〔certain〕If you want to be certain of getting a ticket, book now.要想有把握买到票，现在就得预订。牛津高阶〔certain〕It is wise to apply early to be certain of obtaining a place.要确保得到位置的话最好是早些申请。朗文当代〔double book〕To make two reservations for (a seat or hotel room, for example) in order to be certain of obtaining one.重复订位：重复订位以确保能取得一位，如订位或旅馆订房美国传统It's one thing to buy a train ticket, quite another to get a seat. (= You cannot be certain of finding a seat, even if you have a ticket.) 买火车票是一回事，能坐到座位又完全是另一回事了。剑桥国际You should reserve early to assure yourselves of (=to be certain of obtaining) the best tickets.你应及早订票，才能确保得到最好的座位。剑桥国际 |
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