1、execute

将…处死;将…正法

He was executed by lethal injection earlier today.

他于今天早些时候被注射处死。

One group claimed to have executed the American hostage.

一个组织声称已经处决了那名美国人质。

完成，表演(高难度动作)

I executed the hairpin turn high on the sheer western face of the mountains.

我在山脉西侧陡峭的高处成功地急转弯。

The landing was skilfully executed.

熟练地完成了着陆。

制作，创作（艺术品）

Morris executed a suite of twelve drawings in 1978.

莫里斯在1978年创作了由12幅画组成的一组作品。

A well-executed shot of a tall ship is a joy to behold.

欣赏优秀的高桅横帆船摄影作品是种乐趣。

2、volatile

易变的;动荡不定的;反复无常的

There have been riots before and the situation is volatile.

以前曾发生过暴乱，现在局势不太稳定。

The international oil markets have been highly volatile since the early 1970s.

从20世纪70年代初开始，国际石油市场就一直很不稳定。

（人）易变的，情绪无常性的

He accompanied the volatile actress to Hollywood the following year.

第二年他陪着这位情绪无常的女演员去了好莱坞。

He has a volatile temper.

他脾气反复无常。

（液体等物质）易挥发的，易发散的

It's thought that the blast occurred when volatile chemicals exploded.

人们认为，易挥发的化学物质爆炸时产生了冲击波。