1 . The sledge gained momentum as it ran down the hill.

雪橇从山上下冲时的动力越来越大.

来自《简明英汉词典》

2 . They chased down the stairs into the narrow, dirty street.

他们冲下楼梯，来到狭窄、肮脏的街上。

来自柯林斯例句

3 . The truck sways wildly, careening down narrow mountain roads.

卡车疯狂地左摇右晃，从狭窄的山路上急冲而下。

来自柯林斯例句

4 . The driver gave me a wave and a toot.

司机冲我挥挥手，按了下喇叭。

来自柯林斯例句

5 . The engine started, revved and the car jerked away down the hill.

引擎发动了，油门加大后车冲下了山坡。

来自柯林斯例句

下冲程

1 . down stroke

下冲失真

2 . down stroke