难能可贵的英文：
few and far between
(of an achievement, action etc.) commendable
rare and commendable; estimable

It is praiseworthy for one who has achieved sth. difficult
难能可贵

The rarest quality in an epitaph is truth.
墓志铭的难能可贵之处是真实。

To see ourselves as others see us is a most salutary gift.
客观地看待自己是极其难能可贵的。

Her one priceless asset is her unflappability.
她有一点是非常难能可贵的,就是她遇事冷静.

"I have two thoughts instead of one. One more way to analyze a problem or trend, and that is priceless. "
我拥有了两条思路,而不仅仅是一条,能够有不止一条的思路来分析某个问题或趋势,这实在难能可贵。

Between ourselves
秘密地说

Interaction between systems or between properties of a system.
系统间或一个系统的各种特性之间的相互作用。

You have your choice between the two.
在这两个之中，你有选择权。

Achievement goals theory is the advance subject of achievement motivation.
成就目标理论是成就动机研究的前沿课题。是目标设置研究的延伸。

This achievement cannot be bettered.
这一成就好得不能再好了。

He has achieved the aim.
他已达到目的了。

The soldiers are in action.
士兵们正在战斗。

rouse to action
使奋起，唤起某人采取行动

override action
超驰控制操作