expand

[iks'pænd]

v.使 ... 膨胀, 详述, 扩张, 增加, 张开

例句与用法：

Metals expand when they are heated.

金属遇热则膨胀。

Our foreign trade has expanded during recent years.

近年来我们的对外贸易有所增加。

The petals of many flowers expand in the sunshine.

许多花的花瓣在阳光中绽放。

词形变化：

形容词: expandable | 名词: expander | 动词过去式: expanded | 动词过去分词: expanded | 动词现在分词: expanding | 动词第三人称单数: expands |

详细释义：

vt.

1. 展开, 张开(帆, 翅等)

The eagle expanded its wings.

老鹰展开翅膀。

2. 使膨胀; 使扩张

3. 扩大; 扩充; 发展

He is thinking of expanding his business.

他正考虑扩展他的生意。

4. 详述

They have expanded my view on the question.

他们已更充分地阐明了我对这个问题的观点。

vi.

1. 展开, 张开

2. 扩张; 发展; 增长

In ten years the city's population expanded by 12%.

十年之中, 该城人口增加了百分之十二。

3. 膨胀

Water expands when it freezes.

水结冰时体积膨胀。

A tire expands when you pump air into it.

轮胎打了气就会胀大。

4. 详细说明[(+on/upon)]

5. 变得和蔼可亲; 感到心旷神怡; 变开朗

My father expanded a little when he had had a drink, and started to talk more freely.

我父亲小酌之后, 就变得开朗可亲些, 话也说得多了。

Her face expanded in a smile.

她笑逐颜开。

短语词组：

expand on/upon

1. 详述

Would you expand on the matter a little further?

请你再进一步谈谈这件事好吗?