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He unscrewed the top off his favourite silver fauntain pen and began to write .

他拧开他最心爱的银质自来水笔笔帽，开始写了起来。

To become or allow to become unscrewed .

被旋下或可被旋下。

In order to replace the high-pressure pump , the low-pressure line that is still fitted must be unscrewed .

若要更换高压泵，必须松开仍然装配在车身上的低压管路。

He unscrewed the lid and took a swig from it , " what are you doing ? "

他拧开盖子，并从它一大口，“你在干什么？”

She glared her pretty face at me , unscrewed the water , and tossed it in my face .

她瞪着她在我美丽的脸庞，拧开了水，扔在我脸上。