挡住的英文：
fetch up
retain
ward

参考例句：

Some of the electrons are stopped by the target and their kinetic energy is converted directly to x-radiation
有些电子被靶挡住后，它们的动能便直接转化为X射线。

On her front porch stood a strange young man, whose head was barely visible above the large carton in his arms.
前廊站着一个陌生的年轻人，两手抱着个大盒子，整个脸几乎被挡住。

Don't let anything obstruct the lens.
别让任何东西挡住镜头。

Unsight an opponent
挡住对方视线

A wall to retain the lake
挡住湖水的堤坝

Armour-plate can fend back bullets.
装甲钢板可以挡住子弹。

We have checked the enemy's advance.
我们业已挡住敌人的前进。

Armour - plate can fend back bullets.
装甲钢板可以挡住子弹。

Window screens are effective in keeping out mosquitoes.
纱窗能有效地挡住蚊子。

You can resist the good food the enticement?
你能抵挡住美食的诱惑？

fetch是什么意思：
v. 拿来；请来；售得；使发出；吸引
n. 拿，取；取物的距离；风浪区；诡计

fetch a circuit
迂回|绕道而行

You first have to play 'fetch' with 20 objects.
首先你必须用20个物体来玩‘取物’游戏。

We have much leeway to fetch up.
我们有很大的差距要赶上。

retain是什么意思：
v. 保持；保存；记住；雇用

orthodontic retainer
正畸保持器

I had one retainer.
我曾有一个牙齿矫形器。

Retained earnings is an owners' equity account that represents accumulated earnings retained in the business.
留存收益是所有者的权益帐，它表示留在企业的收益积累。

ward是什么意思：
n. 病房；监督；被监护人；区
v. 挡住；避开；守护；收容

ward in chancery
受英国大法官监护的未成年人

He was put in an isolation ward.
他住进了隔离病房。

There are three candidates standing for election in this ward.
这一区里有三名候选人参加竞选.