n. [机]动力,功率;力量;政权,权力;强国,大国;
vt. 运转;用发动机发动;使…有力量;
vi. 靠动力行进;快速行进;
adj. 权力的;机械能的,电动的;用电力(或动力)发动的;
🗣️ 情景例句
I miss her very much.
我非常想她。
But you just got here. Can't you stay a little longer?
不过你刚来呀。不能再呆一会了吗?
and we have to lower into the ground and haul out of the ground great lengths of drill pipe which are rotated by an engine at the top and are fitted with a cutting bit at the bottom.