举手的英文：
raise one's hand
reach up

参考例句：

Show up your hand.
举手。

Let them who agree hold up their hands!
赞成的举手!

To salute with eyes ( the hand) .
行注目(举手)礼

He lifted up his hand to cast his vote.
他举手投票。

Tom held up his hand to check him.
汤姆举手制止了他。

We elected our monitor by a show of hands.
我们举手选举了班长。

To this, the small servant girls all heave hand to salute.
对这一点，小丫鬟都是举手欢迎。

She is pragmatic and always puts up her hand to answer teachers' questions.
她很活跃，经常积极举手回答老师的问题。

Hold your hand up if you wish the chairman to recognize you.
要是你希望会议主席准许你发言的话，你就举手。

Being the first to put your hand up and getting answers right is not always cool in British schools.
在英国学校，第一个举手并能正确回答问题并不一定意味着你很酷。

raise是什么意思：
v. 举起，升起，抬高；提高；改善；筹款；提出；引起；抚养；种植，饲养；起身
n. 加薪；高地；提升；上升

Bear in mind that the chief ray is now principal ray.
记住，此时主光线就是主点光线。

externo-lateral ray
外侧辐肋

concrete for radioactive ray shielding
放射线屏蔽用混凝土

one是什么意思：
num. 一；同一个、最重要的一个
det. 代替a或an，表示强调；某位（用于不太熟悉之人的姓名之前）
pron. 任何人；一个人；一个事物；其中的一个人

One, Taipei, one way.
台北单程票一张。

This one is not a spoof.
这个就不是开玩笑了。

One and one make(s) two.
一加一等于二。

reach是什么意思：
v. 抵达；达到；伸出（手）；够到；延伸（到）
n. 可及之范围；一段流域；地带；大片地区

reach the bottom
到达底部

Women have not even reached the level of tokenism that blacks are reaching
妇女甚至尚未达到黑人正在达到的象征性水平。

There is no question that a new compromise will be reached.
新的妥协毫无疑问地会达成。