开：open 音标： /ˈoʊpən/ /ˈəʊp(ə)n/
关：close 音标：/kloʊs/ /kləʊs/
双语例句：
open：
1、it was a warm evening and the window was open
那是个暖夜，窗是开着的
2、the door was wide open
门开得很大
3、the cupboard's been ripped open.
碗橱已经猛地被打开了。
4、the pass is kept open by snowploughs.
这条路用扫雪车来保持畅通无阻。
5、his eyes were open but he could see nothing.
他眼睁着却什么也看不见。
close：
1、she jumped on to the train just as the doors were closing
正当车门要关闭时她跳上了火车
2、they had to close the window because of the insects.
因为这些昆虫，他们不得不关闭窗户。
3、Loretta closed her mouth
洛雷塔闭上了嘴
4、Rex closed the book.
雷克斯合上了书。
5、the factory is to close with the loss of 150 jobs
这家工厂即将关闭，150人即将失业
么么三姨
