| 例句 |
noun the volume control knob音量控制旋钮 It isn't art—it's just a horror movie with knobs on! 那不是艺术，只是更加惊悚的恐怖片而已！ I tried the knob, and this time the door opened. I’ve tried fiddling with the knobs, but nothing seems to happen. the knobs on the radio She turned the heavy brass door knob. |