开字母英文怎么写

开[kāi] [动] open；turn on； [名] percentage；a surname； [量] [刷] division of standard size printing paper；carat；kelvin (K)；

开和关的英语分别是on和off。

音标：英 [ɒn]   美 [ɑ:n]

释义：（放，穿，连接）上;向前，（继续）下去

1、The lights were all on.

灯都亮着。

2、The TV is always on in their house.

他们家的电视总是开着。

3、We were without electricity for three hours but it's on again now.

我们停电三个小时了，不过现在又来电了。

4、There was a war on at the time.

当时正值战争。

5、What's on at the movies?

电影院在上演什么片子？

音标：英 [ɒf]   美 [ɔ:f]

释义：离开;距，离;被取消;下班

1、Sarah's off in India somewhere.

萨拉远在印度某地。

2、I must be off soon (= leave) .

我必须很快离开这里。

3、Off you go!

你走吧！

4、Summer's not far off now.

夏天已近在眼前了。

5、A solution is still some way off.

解决办法尚需时日。

开：on,open,start... 关：off,close,shut,stop... 不同的地方，用不同的词

开 open； SWIFT； opened； drive 关 close； off； shut； closed

具体需要搭配名词选择,单纯"开"字无法肯定.例:开车 drive car开门 open the door