1、revolutionary

革命的

Do you know anything about the revolutionary movement?

你了解这场革命运动吗？

the Cuban revolutionary leader, Jose Marti.

古巴革命领导人何塞·马蒂

革命性的;突破性的;发生重大变革的

Invented in 1951, the rotary engine is a revolutionary concept in internal combustion.

1951年发明的转缸式发动机是内燃机领域内的革命性概念。

His playing as a trumpet player was quite revolutionary.

他的小号演奏独创一格。

2、existence

存在;实有

the existence of other galaxies.

其他星系的存在

The Congress of People's Deputies in effect voted itself out of existence.

(苏联)人民代表大会的投票在事实上终结了自身的存在。

（尤指逆境中的）生活，生活方式

You may be stuck with a miserable existence for the rest of your life.

你可能一辈子都要过着悲惨的生活。

Their day-to-day existence was routine.

他们的日常生活很平淡。

3、besiege

烦扰；纠缠

She was besieged by the press and the public.

她被媒体和公众纠缠不休。

包围；围攻

The main part of the army moved to Sevastopol to besiege the town.

军队主力转移到了塞瓦斯托波尔，对该城进行围攻。

The Afghan air force was using helicopters to supply the besieged town.

阿富汗空军正用直升机向被围城镇提供补给。