小心的英文：
careful
to watch out
to look out
to take care

参考例句：

Look out !
小心!

Watch out, It's amber light.
小心！现在是黄灯。

Beware of the poverty gap trap.
小心贫富差距的陷阱。

Don't scald your hands
小心热气嘘着手。

make assurance doubly sure
加倍小心;使万无一失

Handle that gun with caution.
拿那支枪要小心。

Be careful as this wire carries electrical current.
小心,这电线有电。

It is the careless man that will suffer;never will the prudent man fall into a trap.
只有大意吃亏，没有小心上当。

Mind how you go,that ladder looks very wobbly to me.
小心，那梯子好像要倒向我了。

This delicate glass must be treated with care.
这精巧的玻璃杯处理时要小心。

careful是什么意思：
adj. 小心的，仔细的，周密的，谨慎的；节约的

Have you heard the CARE？
你听说过美国援外汇款合作组织吗？

not care a hoot
1.毫不在乎

Be careful of the instruments.
别损坏仪器。

watch是什么意思：
n. 表，手表；注意；观察；值班
v. 看；观察；照看；小心

Is the watch valuable?
这块表很值钱吗?

A watch, uh, how do you put it, a luminous watch?
一只手表，呃，叫它什么来着，一只夜光表?

Time your watches.
调准你的手表。

out是什么意思：
adv. 出外；在外；离岸；出现；问世；大声地；完全；用完；不流行
adj. 外侧的；偏僻的
prep. 通过…而出；沿着…而去
n. 借口，托辞
pref. 外，超过，出，向外

be out for the count
拳击者被击倒后经裁判数到十秒还站不起来|被判失败|打输|被打败

Out of the Blue
从天上掉下来

Out of power, he is out of favour.
当他失去权力之后，他也就不再受人欢迎。