Open tube
[电] 开管
🧩 词语组成解析
open
['opən]
adj. 敞开的，开着的;公开的，公共的;坦率的;有议论余地的;
vt.& vi. （打）开;开始;睁开;启动;
n. 户外，野外;空旷;公开;
vi. 使打开;展示，显现;
vt. 张开;开放;开张营业;为（建筑物）揭幕;
🗣️ 情景例句
Thank you.
谢谢。
He who is afraid of asking is ashamed of learning.
害怕问者耻于学。
His work starts at half past eight, and finishes at a quarter to five.
30开始工作，4：45下班。