1、breakdown

（關系的）破裂；（計劃、討論等的）失敗，結束

the breakdown of talks between the US and EU officials.

美國和歐盟官員間談判的破裂

the irretrievable breakdown of a marriage.

無法挽回的婚姻破裂

神經衰弱；精神崩潰

My personal life was terrible. My mother had died, and a couple of years later I had a breakdown.

我個人的生活一團糟。母親去世了，幾年后我又患上了神經衰弱。

They often seem depressed and close to emotional breakdown.

他們經常顯得很沮喪，精神瀕于崩潰的邊緣。

（汽車或機器的）故障，損壞

Her old car was unreliable, so the trip was plagued by breakdowns.

她的舊車老不聽使喚，一路上總是出故障。

If you stop on the hard shoulder, wait for the police or breakdown service.

如果你的車壞在路肩上了，就得等警察或修理站來幫忙。

2、discover

發現(以前不知道的事實)

She discovered that they'd escaped.

她發現他們已經逃跑了。

I discovered I was pregnant.

我發現自己懷孕了。

(第一個)發現

the first European to discover America.

第一個發現美洲大陸的歐洲人

In the 19th century, gold was discovered in California.

19 世紀時，在加利福尼亞發現了金子。

發現，發掘(不為人所知的演員、音樂人等藝人)

The Beatles were discovered in the early 1960's.

甲殼蟲樂隊于20世紀60年代初為世人所知。