screw-bump

基本解释

• 螺杆泵

同根派生

英汉例句

• She tripped and went down with a bump.
  她絆了一下，猛地跌倒在地上。
• The two children collided with a bump.
  兩個孩子砰的一聲撞上了。
• I can't get this screw to come out of the wall.
  我無法把這顆螺絲釘從牆上取出。
• I really am so sorry to bump into you.
  撞著你了真是非常抱歉。
• The brackets want an extra screw.
  托架需要再加一個螺釘。