Checkhead
(方形穴播装置)尺度索扣拨[过结]器
🗣️ 情景例句
I can't build a fire by rubbing two pieces of wood together.
我总不能靠着磨擦两片木柴来取火吧。
It's urgent to improve the packing.
必须马上改进包装。
its action depends on the surface, water or ground, over which it rides.
它的飞行取决于它所悬浮的水面或地面。