unscrew
柯林斯词典
1. V-T/V-I If you unscrew something such as a lid, or if it unscrews, you keep turning it until you can remove it. 拧开
She unscrewed the cap of her water bottle and gave him a drink. 她拧开水瓶的盖,给他水喝。
2. V-T If you unscrew something such as a sign or mirror which is fastened to something by screws, you remove it by taking out the screws. (按螺纹)拧下钉子
He unscrewed the back of the telephone and started connecting it to the cable. 他拧下电话后壳的钉子,开始把电话线连到电话机上。
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