I think that we have reason to be optimistic.
我认为我们有乐观的理由。
你得乐观一点。
To be optimistic, brave and right.
乐观、勇敢和正义。
"I choose to be optimistic," he said.
“我选择乐观，”他说。
That is surely reason to be optimistic.
这就是我们应当乐观的理由。
I think we have reason to be optimistic.
我认为，我们有理由保持乐观。
There is reason to be optimistic, however.
但是，有理由表示乐观。
But Rajaratnam has reason to be optimistic.
不过，拉贾拉南仍不乏乐观的理由。
I think it is a great reason to be optimistic.
我相信这是我们能够乐观的一个很重要的理由。
We have reason to be optimistic in this respect.
我们有理由在这方面保持乐观的态度。
Choose to be optimistic when it comes to being single.
谈到单身问题的时候，你完全可以选择以乐观的心态来面对它。
Yet, there are still plenty of reasons to be optimistic.
但是，还是有很多理由足以让我们变得乐观起来。
To be optimistic: always to look for solutions and possibilities.
要乐观：不断地探寻解决办法和可能性。
She also called on people to be optimistic and support the market.
她还号召人们要乐观，要支持整个市场。
E. g. You must try to be optimistic, even when things seem impossible.
例句：你必须试着保持乐观，即使事情看似毫无可能。
At present, the ramjet engine jet for military purposes to be optimistic.
目前，冲压式喷气发动机的军事用途被看好。
We pick up the Chinese steel demand to be optimistic and look forward to.
我们对于中国钢材需求的回暖保持乐观和期待。
Such is human nature and nobody can be blamed for trying to be optimistic;
努力保持乐观，只是人的本性，无可厚非；
He is optimistic that his government will be able to manage the outbreak effectively.
他乐观地认为，他的政府将能够有效地控制疫情。
A: As a researcher, I lack the ability to be completely optimistic.
答：作为一名研究人员，我无法完全乐观。
We all know people who seem to be perpetually positive, optimistic, and energetic.
我们都认识一些始终保持积极、乐观心态，并且精力充沛的人。
It's not pure pleasure, and I don't want people to be irrationally optimistic.
它不是一种单纯的高兴，我也不想让人们无理性地乐观。
"I certainly have to be very optimistic," she said.
“我当然要非常乐观，”她说。
"I certainly have to be very optimistic," she said.
“我当然要非常乐观，”她说。
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