Stepdown
降压的降低
🗣️ 情景例句
I have to take your measurements.
我必须要你的尺寸。
What is learnt in the cradle lasts (or is carried) to the grave.
小时学会的事情到老不会忘记。
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。