screw-bump
基本解释
- 螺杆泵
英汉例句
- She tripped and went down with a bump.
她绊了一下，猛地跌倒在地上。 - The two children collided with a bump.
两个孩子砰的一声撞上了。 - I can't get this screw to come out of the wall.
我无法把这颗螺丝钉从墙上取出。 - I really am so sorry to bump into you.
撞着你了真是非常抱歉。 - The brackets want an extra screw.
托架需要再加一个螺钉。