It sounds fishy to me. (听起来很可疑。)

It sounds suspicious to me.

It sounds funny to me.

Something's fishy.

I smell a rat. *smell a rat 为短语，表示“感到有可疑之处”、“事情很可疑”的意思。

我不信他的话。

I won't buy that story. *此处的buy表示“相信(believe)，当真”，而不表示“买”，口语中常用。

He said she is his sister. (他说她是他的妹妹。)

I won't buy that story. (我不信他的话。)

I won't buy that story. (我不会信他的话的。)

But, it's true. (可那是真的呀。)

I don't buy it.

I won't believe that story.

你认为她是当真的吗?

Do you think she's serious?

She told me she likes you. (她告诉我她喜欢你。)

Do you think she's serious? (你想她是认真的吗?)

我不把他的话太当真。

I don't take him too seriously.

I don't pay much attention to what he says. *pay attention to...“对……严加注意”、“对……留意”。

I don't take him very seriously.

我不相信他。

I don't believe him.

I don't believe him. (我不相信他。)

What makes you say that? (你为什么这么说呢?)

I don't trust him.

I don't think he is telling the truth. (我认为他没说真话。)

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