1、remain

保持;繼續(xù);持續(xù)

The three men remained silent.

這3個(gè)人保持著沉默。

The situation remains tense.

形勢(shì)持續(xù)緊張。

留在，停留于(某處)

He will have to remain in hospital for at least 10 days.

他至少得在醫(yī)院里呆10天。

From time to time, James remained at home with his family.

詹姆斯偶爾留在家里陪家人。

仍然存在;繼續(xù)存在

Many of the differences in everyday life remain.

日常生活中的許多差異仍然存在。

The wider problem remains..

更普遍的問(wèn)題仍未解決。

殘余（物）;剩余（物）;遺跡

They were tidying up the remains of their picnic.

他們正在收拾野餐后剩下的東西。

the charred remains of a tank.

燒焦的坦克殘骸

2、drop off

打瞌睡;睡著

I must have dropped off to sleep.

我肯定是睡著了。

Just as I was dropping off, a strange thought crossed my mind.

就在我打瞌睡的時(shí)候,一個(gè)奇怪的念頭閃過(guò)我的腦海。

減退;減少

Sales to the British forces are expected to drop off.

預(yù)計(jì)對(duì)英國(guó)軍隊(duì)的銷(xiāo)售量會(huì)減少。

The daily toll of casualties has dropped off sharply.

每日傷亡人數(shù)已經(jīng)大大減少。

3、revolutionary

革命的

Do you know anything about the revolutionary movement?

你了解這場(chǎng)革命運(yùn)動(dòng)嗎？

the Cuban revolutionary leader, Jose Marti.

古巴革命領(lǐng)導(dǎo)人何塞·馬蒂

革命性的;突破性的;發(fā)生重大變革的

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

1951年發(fā)明的轉(zhuǎn)缸式發(fā)動(dòng)機(jī)是內(nèi)燃機(jī)領(lǐng)域內(nèi)的革命性概念。

His playing as a trumpet player was quite revolutionary.

他的小號(hào)演奏獨(dú)創(chuàng)一格。