1、dissappear

(通常指因位置改變而)消失,不見

The black car drove away from them and disappeared.

那輛黑色轎車駛離了他們的視線。

Clive disappeared into a room by himself.

克萊夫獨自一人進了屋。

消失;失蹤

a Japanese woman who disappeared thirteen years ago.

一個 13 年前失蹤的日本女人

Janet's husband and sister noticed that small kitchen objects were disappearing with increasing regularity.

珍妮特的丈夫和她的姐姐發現廚房里的小物件經常不翼而飛，而且次數愈發頻繁。

不復存在;滅絕;消亡

The immediate security threat has disappeared.

直接的安全威脅已不復存在了。

2、break down

（機器或車輛）出毛病，損壞

Their car broke down.

他們的車子出故障了。

（討論、關系或系統）失敗，破裂，失靈

Talks with business leaders broke down last night.

昨晚與商界領導人的談判破裂了。

Paola's marriage broke down.

葆拉的婚姻破裂了。

分解；將…分成若干部分

The report breaks down the results region by region.

報告將調查結果按地區分成若干部分。

These rules tell us how a sentence is broken down into phrases.

這些規則告訴我們一個句子是怎樣分解成若干短語的。