I don't believe it!"

简直不敢相信“

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I can't believe you don't want our walls to be red.

真不敢相信你不愿意把我们的墙壁刷成红色。

How about 实战 - SpeakingMax英语口语达人

For example, I don't have more space to write, if this is time and this is earnings-- if your earnings were,say, flat and suddenly increased like that, they wouldn't believe this increase at first, so the board would decide to adjust only, say, half way up.

例如,没地方写了,横轴是时间,纵轴是收益,如果你的收益,一直平稳,突然间提高,他们刚开始不敢相信这种增长,董事们决定只小幅增加,如增到一半

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I can't believe your brother is a lawyer.

我真不敢相信你的哥哥是一个律师。

It sounds like 实战 - SpeakingMax英语口语达人

I can't believe that you won the lottery.

我真不敢相信你居然中彩票了！

I can 实战 - SpeakingMax英语口语达人

I can't believe this is happening.

我真不敢相信这事就这么发生了。

I can't 实战 - SpeakingMax英语口语达人