Learning difficulties, as they are politely called, make children a target for bullies.

He missed the target only once yesterday.

昨天他只有一次脱靶.

We aimed the microscope at a likely looking target.

我们把显微镜对准了一个看起来合适的目标。

Korea has been a target of threats and slanders from the major western powers.

朝鲜一直是西方主要大国威胁和诋毁的目标。

All works of art have life as their source.

一切文艺创作都来源于生活.

Scientific research is widely claimed to be the source of the high standard of living in the US.

科学研究被普遍认为是美国高生活水准的源泉。

The river has its source [ rise ] in the mountains.

这条河发源于群山之中.

A senior source close to Mr Blair told us: "Our position has not changed."

和布莱尔先生关系密切的一位高层人士告诉我们说：“我们的立场没有改变。”

It would be useful if you could nail down the source of this tension.

如果你能弄清这种紧张的根源，将会大有益处。

We pasted the enemy's greatest source of supply.

我们对敌人的最大补给来源予以重击.

Supporters say open source software is more secure.

拥护者认为开放源代码软件安全性更高。

Try to buy wood that you know has come from a sustainable source.

尽量购买来自可持续发展林的木材。

They lived in fear of their master.

他们惧怕主人，提心吊胆地过日子。

She is master of the situation.

她控制着局面.

The question is whether technology is going to be our servant or our master.

问题是科技将为我们所用还是要驾驭我们。

A great poet is a master melody.

大诗人也是音律大师.

He was a master of the piano.

他是钢琴教师.

His master granted him a small ingot of silver.

主人赏给他一锭银子.

She learned Latin without a master.

她无师自通学会了拉丁语.

English is not easy to master.

英语不易掌握.

It will be a unique family occasion.

这将是一次特别的家庭聚会。