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    首页/CEFR/C1/Vocabulary/UK/knob ·noun/knob ·noun

要调节音量,只需转动收音机上的黑色旋钮。

To adjust the volume, simply turn the black ___knob on the radio.

那栋老房子的前门上有一个漂亮的黄铜门把手。

The old house had a beautiful brass ___knob on its front door.

停电时,我无助地扭动着音响上的旋钮。

When the power went out, I was helplessly twisting the ___knob on the stereo.

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