The official figures suggest there are 50 million people learning Chinese, but we are not so optimistic.

根据官方的数字，现在有五千万人在学习汉语，但我们不这样乐观。

youdao

But he's not so optimistic about the mood of any advanced civilizations in the Milky Way galaxy that we might encounter someday.

可是，对于我们未来可能遇到的银河系其他发达文明，他却没有这么乐观。

youdao

I'm not so optimistic.

我没那么乐观。

youdao

But many other observers are are not so optimistic.

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Her father, Hussein, 45, is not so optimistic, however.

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Other analysts are not so optimistic.

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