1. We have replaced the knobs on all the doors.
   我们将门上所有的把手都换了。
2. There are luminous knobs on all the doors in my house.
   我家所有门上都安有夜光把手。
3. Turn the door knob to open the door.
   拧门把手开门。
4. There is a knob of butter on the table.
   桌子上有一小块黄油。
5. This machine has lots of knobs on it. Which one starts it?
   这机器有许多旋钮。哪一个是启动它的？
6. It isn’t art—it’s just a horror movie with knobs on!
   那不是艺术，只是更极端的恐怖片而已！
7. This knob is only held on by sellotape.
   这个旋钮只是用透明胶带固定住的。
8. Give the knob a twist.
   拧一下门把。
9. Always depressurize a regulator before closing the adjusting knob and removing the regulator from the cylinder.
   在关闭调整钮和从钢瓶上断开调整器之前，总是使调整器减压。
10. Was he knobbing her or not?
    他到底和她有没有私情？
11. My radio's knob got loose.
    我收音机上的旋钮松动了。
12. Turning the knob fully counterclockwise (to OFF) allows the gate to pass signals unattenuated, effectively bypassing the gate.
    逆时针旋转旋钮直到OFF,这样，允许信号毫无衰减地通过，有效地直通。

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