closed up tight 密不透风
tight closed circuit system 紧闭环路系统
closed tight
闭紧
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The baby lay on his back with his eyes closed tight.
这个婴儿平躺着，两眼紧闭。
《柯林斯英汉双解大词典》
The motor case is a steel cylinder closed tight at one end. the other end is the open throat and nozzle.
发动机壳体为一个其一端为密封的钢铸圆柱缸体，另一端则为敞口的喉道及喷管。
youdao
Can their eyes see now closed tight?
它们紧闭的眼睛现在能看见吗？
In fact, his hands were still closed into tight fists.
VOA: special.2009.01.17
In fact,his hands were still closed into tight fists.
VOA: special.2010.06.12
Yvonne fished for something in her tight jeans pocket, thrust it out closed in her fist.
NEWYORKER: She��s the One
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