词He closed up when he found he knew practically nothing about the subject under discussion.
当他发现自己对所讨论的问题实际上一无所知时, 就不再开口了。
环系统环环，闭型环He closed up when he found he knew practically nothing about the subject under discussion.
当他发现自己对所讨论的问题实际上一无所知时, 就不再开口了。
He just had time to peek into the room before the door closed.
他
间里望了一眼门便关上了。
The orchestra closed the concert with an encore.
交响乐团在再来一次的欢呼声中结束了音乐会。
The local authority rode roughshod over the protests of parents and closed down the school.
地方当局毫不理会家长的抗议，把学校给关闭了。
"Sayable" is a relatively closed system of expressions, and "unsayable" is a relatively open one.
可说"是相对封闭性的系统,"不可说"是相对开放性的系统。"
A grammatical choice is drawn from a closed set of options.
语法选择是在有限的范围內进行的。
I’m afraid geophysics is rather a closed book to me.
我对地球物理学一窍不通。
Food which has been closed up in tins is called tinned food.
密封在罐头里的食品叫作罐装食品。
He closed the book, yawned, and went to bed.
他合起书, 打了个呵欠, 然后上床睡觉了。
Klemetsen rolled down his window, closed in on the antlered culprit, and grabbed it.
克莱曼森拉下车窗，拦截这个长角的罪犯，一把抓住了牠。
We closed a bargain with the company.
我们与那家公司达成了协议。
The canal has been closed to shipping.
这条运河已对所有的船舶关闭。
Sounds of cheering filtered in through the closed window.
欢呼声透过关闭的窗户传了进来。
The westbound carriageway of the motorway is closed.
朝西面去的车道已关闭了。
The new bone that closed the marrow cavity could only be formed by the endosteum.
结论关闭髓腔的骨质只能来自于骨内膜成骨。
Colly could not close the closed closet ,cause your cloth were crammed to close.
克欧不能关上衣服壁橱的原因是把衣服放得太密。
Physicists studying the issue talk not about time machines but about closed timelike curves (CTCs).
讨论这类
法的物理学家，谈的不是时光机器，而是类时迴圈（closedtimelikecurve,CTC）。
OK dovecot ready.quitOK Logging outConnection closed by foreign host.
检查Dovecot服务器是否正常启动 to character is .
Some shopkeepers closed early to prevent the wholesale destruction of their property by the hooligans.
有些店主为了防止流氓大肆破坏他们的财产而早早关门。
Is the bolt of the door closed?
门闩插上了吗?
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