These hills were formed by glaciation.

这些山丘是冰川作用形成的。

The benzene vaporized and formed a huge cloud of gas.

苯蒸发形成了一大团气体。

The stars must have formed 10 to 15 billion years ago.

这些恒星一定形成于100亿至150亿年前。

A spectrum is formed by a ray of light passing through a prism.

一束光通过棱镜就会形成光谱。

The poor suburbs traditionally formed the bedrock of the party's support.

贫穷的郊区在传统上构成了支持该党的牢固基础。

The moral characters of men are formed not by heredity but by environment.

人的品德不是由遗传而是由环境形成的。

Slabs of rock had slipped sideways in the remote past and formed this hole.

在遥远的过去，大块的岩石向旁边滑落，形成了这个洞。

Puddles had formed in the dips.

低洼处形成了一个个水坑。

The teams formed up into lines.

各队已整好了队列。

The singer re-formed his band.

这名歌手对他的乐队进行了重组。

The chain is formed from 136 links.

这根链条由136个环组成。

The party has recently been re-formed.

这个政党最近进行了重新组合。

A few cushions formed a makeshift bed.

临时用几个垫子拼了一张床。

The leaves formed a dark green rosette.

这些叶子聚在一起，像是一朵深绿色的玫瑰。

Anger at injustice formed his character.

对不公正行为的愤怒塑造了他的性格。

A skin had formed on the top of the milk.

奶上结了一层奶皮。

They then formed a ring around the square.

他们随后沿广场围成了一圈。

O'Brien formed the men into a ragged line.

奥布赖恩把这些男人排成了歪歪扭扭的一排。

I formed many close friendships at college.

我大学时结交了许多密友。

The residents formed a community action group.

居民组成了社区行动组。

Police formed a cordon between the two crowds.

警察在两群人之间设置了一条警戒线。

He formed a band with some friends from school.

他和来自学校的一些朋友组成一支乐队。

They formed a circle and sang "Auld Lang Syne."

他们围成一圈，唱起了《友谊地久天长》。

I formed several lasting friendships at college.

我在大学与几个同学建立了牢固的友谊。

These figures formed the basis of their pay claim.

这些数字是他们要求提高工资的根据。

A pro tem committee was formed from existing members.

由现有的委员组成了一个临时委员会。

The company was formed by merging three smaller firms.

公司是由三家小公司合并组成的。

As fans rushed to leave, jams formed at all the exits.

因球迷都急于离开，所有出口都给阻塞了。

When she laughs, she crinkles her perfectly-formed nose.

她一笑，俊俏的鼻子就会皱起来。

The survey formed part of a larger programme of research.

这个调查是研究计划的一部分。