1、expression

表達;表述

Laughter is one of the most infectious expressions of emotion.

笑是最具感染力的情感表達方式之一。

From Cairo came expressions of regret at the attack.

開羅對此次攻擊表示遺憾。

表情;神情

The civil servant's expression, however, did not change, not so much as by a flicker.

然而，那位公務員的表情還是那樣，絲毫沒變。

Levin sat there, an expression of sadness on his face.

萊文坐在那里，神情悲傷。

（數學中的）表達式

This forms the basis for our mathematical expression for the electric field.

這是電場數學表達式的基礎。

2、sustain

使持續;保持

But he has sustained his fierce social conscience from young adulthood through old age.

而他從青年時期一直到老年都始終保持著強烈的社會良知。

The parameters within which life can be sustained on Earth are extraordinarily narrow.

地球上生命可以存活下來的地域范圍是非常狹小的。

經受;遭受;蒙受

Every aircraft in there has sustained some damage.

那里的每架飛機都受到了一些損壞。

A seventeen-year-old tourist died late last night of injuries sustained in yesterday's bomb blast.

一位 17 歲的游客在昨天的炸彈爆炸中受傷并于當天深夜身亡。