刚好的英文：
just
exactly
happen to be

参考例句：

anticipatory L/C is opposite to time L/C
预支信用证刚好与远期信用证相反。

I gave Tom the exact dose of morphine that would keep him pain-free, but not diminish any awareness that remained
我给汤姆服吗啡的剂量，刚好既能减轻他的痛苦又不削减他尚存的意识。

In a prosperous hour
在方便的时刻,恰好,刚好

The piano will barely go through the door.
钢琴刚好能从门洞通过。

The windows just open into each other.
这两扇窗户刚好面对面。

You have just time to dress before banquet.
你刚好还有时间着晚礼服赴宴。

Steam the carrots until they are just beginning to be tender.
将胡萝卜蒸至刚好变软。

The third blind happened to take hold of the elephant's trunk.
第三个瞎子刚好捉住了象的鼻子。

The box was just out of reach.
盒子刚好放在够不到的地方。

Just as he was recovering from his attack of grippe,pneumonia set in.
他流感刚好，又患上了肺炎。

exactly是什么意思：
adv. 确切地；究竟；正是如此

three exactly coincident rasters
三个精确一致的光栅

Exactly: and that is the ineluctable modality of the audible
正是这样。这就是可听事物无可避免的形态。

You can do exactly as you like.
你爱怎么做就怎么做。

This is exactly the thesis for trying studying.
这正是本论题试图探讨的问题。

This is exactly the ingenuity of the design.
这就是古人设计的巧妙之处。

happen是什么意思：
v. 偶然遇到；发生；出现；碰巧

These things will happen.
这种事总要发生的。

It happened far back in the past.
这事发生在久远的过去。

A string of accidents happened at that corner.
在那个转角发生了一连串的事故。

Accidents are happening with increasing frequency.
事故发生得越来越频繁。

That happened in the remote past.
那发生在久远的过去。