We should not be too optimistic about this.

不应对此太过乐观。

youdao

However, in view of this situation, we can not be to optimistic, because with the deepening of communication, something bad can be brought to our language, too.

但是，鉴于这一情况，我们不能过于乐观，因为随着交流的深入，一些不好的东西也可以被带到我们的语言。

youdao

Although it is natural for you to be drawn into the depths, you also appreciate days when there is a carefree and optimistic spirit around, as it reminds you not to take everything too seriously.

虽然你习惯性的把什么事情都想的很深，但是你任然很珍惜那些无忧无虑乐观的日子， 因为这提醒你不要把所有的事情都想的过于认真。

youdao

But perhaps the South's Mr Kim should not be too optimistic about those talks.

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So to some observers, it may not be the time to get too optimistic.

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Their assumption that the C-5 modernization effort is a suitable counterbalance to the loss of C-17 production capability is far too optimistic, as the C-5 modernization will not be completed until after 2020.

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