1V-ERG 拧开;旋开 If you unscrew something such as a lid, or if it unscrews, you keep turning it until you can remove it. 拧开;旋开
She unscrewed the cap of her water bottle and gave him a drink. [VERB noun]
她拧开水壶的盖子给他喝水。
The base of the lamp unscrews for wiring and mounting. [VERB]
台灯的底座可以拧开来进行布线和安装。
2VERB (旋出螺丝以)拆卸,取下 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. (旋出螺丝以)拆卸,取下
He unscrewed the back of the telephone and started connecting it to the cable. [VERB noun]