相当乐观的英文：
quite optimistic

quite是什么意思：
adv. 相当；完全

She is poor but quite respectable.
她虽穷，人品却很端正。

There had been quite a metamorphosis.
他们完全变了样。

On the face of it, it seems quite reasonable.
从表面看，这似乎很合理。

You are quite good with your hands.
你手很灵巧。

That is quite a different matter.
那完全是另一码事。

optimistic是什么意思：
adj. 乐观的，乐观主义的

You have to be an optimist to be an inventor or entrepreneur.
要成为一位发明家或企业家，你必须得是个乐天派。

The timetable was hopelessly optimistic.
时间表制定得过于乐观。

An optimist sees the rose; a pessimist the thorn
〞乐观的人看到玫瑰,悲观的人只看到它的刺〞

An optimist sees an opportunity in every calamity.
乐观者在灾难中可以看到希望。

My optimistic predictions came true.
我的乐观的预言成了现实。