1、revolutionary

革命的

Do you know anything about the revolutionary movement?

你了解這場革命運動嗎？

the Cuban revolutionary leader, Jose Marti.

古巴革命領導人何塞·馬蒂

革命性的;突破性的;發生重大變革的

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

1951年發明的轉缸式發動機是內燃機領域內的革命性概念。

His playing as a trumpet player was quite revolutionary.

他的小號演奏獨創一格。

2、existence

存在;實有

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.

(蘇聯)人民代表大會的投票在事實上終結了自身的存在。

（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.

你可能一輩子都要過著悲慘的生活。

Their day-to-day existence was routine.

他們的日常生活很平淡。

3、besiege

煩擾；糾纏

She was besieged by the press and the public.

她被媒體和公眾糾纏不休。

包圍；圍攻

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

軍隊主力轉移到了塞瓦斯托波爾，對該城進行圍攻。

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

阿富汗空軍正用直升機向被圍城鎮提供補給。