1、permanent

永久的；永恒的

Heavy drinking can cause permanent damage to the brain.

酗酒能造成永久性大腦損傷。

a permanent solution to the problem...

該問題一勞永逸的解決辦法

（尤指問題或困難）不斷出現的，一直存在的

a permanent state of tension.

長久以來的緊張局勢

They feel under permanent threat.

他們覺得一直處于威脅之下。

（家庭住址）固定的

York Cottage was as near to a permanent home as the children knew.

在孩子們眼中,約克小屋最像一個安定的家。

They had no permanent address.

他們沒有固定居所。

2、collide

碰撞;相撞;撞上

Two trains collided head-on in north-eastern Germany early this morning.

今天早上德國東北部兩列火車迎面相撞。

Racing up the stairs, he almost collided with Daisy.

他飛奔上樓，差點撞到黛西。

(目標、意見等)沖突，抵觸

The aims of the negotiators in New York again seem likely to collide with the aims of the warriors in the field.

看來，紐約談判人員的目標可能會再次與戰場上勇士們的目標發生沖突。

In the next two years, Nasser regularly collided with the different Western powers, who refused to arm him.

隨后的兩年里，納賽爾不斷與拒絕為他提供武器裝備的幾個西方大國發生沖突。

3、current

(河、湖或海的)水流，潮流

Under normal conditions, the ocean currents of the tropical Pacific travel from east to west.

在正常情況下，太平洋的熱帶洋流自東向西流。

The couple were swept away by the strong current.

這對夫妻被巨大的水流卷走了。

現時的;當前的;進行中的

The current situation is very different to that in 1990.

當前的形勢與1990年截然不同。

He plans to repeal a number of current policies.

他計劃廢除一些當前的政策。