Definition: toward the bottom of a hill or slope Level: C2
当我们向下跑时，小路变陡了。
The path steepened as we ran ___downhill.
长途爬坡后骑车下坡会带来不可思议的自由感。
Cycling ___downhill after a long climb gives an incredible sense of freedom.
他让汽车滑行下坡以节省燃料。
He coasted the car ___downhill to save fuel.
