爱笑的颜小妞
开:open 音标: /ˈoʊpən/ /ˈəʊp(ə)n/关:close 音标:/kloʊs/ /kləʊs/开和关 Opening and closing词典释义[网络]on and off示例数字控制被用来创建一个方波,信号在开和关之间切换。Digital control is used to create a square wave, a signal switched between on and off.
超级飞侠包警长
开 turn on关 turn off~亲,如果你认可我的回答,请点击【采纳为满意回答】按钮~~手机提问的朋友在客户端上评价点【采纳回答】即可。~你的采纳是我前进的动力~~O(∩_∩)O,互相帮助,祝共同进步!
先米团子
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。
优质英语培训问答知识库