1、common

常见的;普遍的

His name was Hansen, a common name in Norway.

他的名字叫汉森，在挪威是一个常见的名字。

Oil pollution is the commonest cause of death for seabirds.

石油污染是造成海鸟死亡最常见的原因。

共有的;共同的

Moldavians and Romanians share a common language.

摩尔达维亚人和罗马尼亚人使用同一种语言。

Such behaviour is common to all young people.

这种行为在年轻人中司空见惯。

寻常的;普通的

Democracy might elevate the common man to a position of political superiority.

民主也许能提升普通人的政治地位，让他们产生优越感。

Common salt is made up of 40% sodium and 60% chloride.

食盐由40%的钠和60%的氯化物构成。

2、appear

好像;似乎;看来

There appears to be increasing support for the leadership to take a more aggressive stance.

好像有越来越多的人支持领导层采取更为强势的立场。

The aircraft appears to have crashed near Katmandu.

飞机似乎在加德满都附近坠毁了。

看起来；显得

She did her best to appear more self-assured than she felt.

她竭力让自己表现得比实际更自信。

He is anxious to appear a gentleman.

他急于想表现得像个绅士。

开始存在；产生

small white flowers which appear in early summer.

初夏时绽放的白色小花

Slogans have appeared on walls around the city.

标语已出现在全城周围的墙上。