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- I am sure she is a paragon of rectitude. 我可以肯定她是个正直的完人。
- I am sure she'll tell you I'm affectionate. 我敢保证，她一定会告诉你，说我的心肠最软。
- I am sure she is not a loose girl. （我相信她不是一位放荡女孩。）
- I am sure she will not really mind . 我肯定她不会真正介意的。
- That girl has great determination; I am sure she will do well. 那女孩子决心很大，我肯定她会做好的。
- I am sure she is as poor as a church mouse after the tour. 我确信她旅行之后一贫如洗。
- I am sure she is now happy as she can hear my piano recital. 我敢肯定，她听到我的钢琴演奏一定会很高兴。
- Only the girls were invited-though I am sure she has room to spare for all of them-she's probably the kind that can't be bothered having boys around. 只有女孩子被邀前往，尽管我敢肯定她家可容纳下所有的人——也许她是那种见了男孩子就烦的人。
- I was sure she knew the answer but for some reason she hung back. 我敢保证她知道答案，但不知为什么她不敢说出来。
- Though she gave no sign, I was sure she had seen me. 尽管她没有示意，我还是确信她看见了我。
- If I am at liberty,I'll come to your birthday party. 如果我有空，我一定去参加你的生日聚会。
- I am sure you would get along very well with him. 我相信你一定会跟他相处得很好。
- I be sure you 'll give us an acceptable price . 相信贵方会给我们一个可接受的报价。
- I am pretty sure she is busy now. 我很确信她很忙。
- I am sure he will succeed one day or another. 我确信某一天他会成功的。
- I am sure(that) he'll make a go of it. 我确信他会干得很出色。
- I am sure he would never strike a person, except under provocation. 我确信他不会打人，除非是受到挑衅。
- Can I be sure of a profit if I invest? 我要是投资，肯定能获利吗?
- I am sure that she will like this book. 我确信她会喜欢这本书的。
- She is tearing up the ivories in heaven, I am sure. 她正在天堂里大弹特弹着钢琴呢，我敢肯定。
