减速试验,滑行试验;
例句:
The driver turned off the engine and let the truck coast down the incline.
司机关掉了马达让卡车滑下斜坡.
A number of bystanders had seen him start on his coast down the hill.
许多旁观者都看见他滑下山.
If the engine is turned off, the car can still coast down the hill.
即使关闭发动机, 这辆车仍能滑下山去.