Pacemaking
n. 定步速, 当标兵, 起搏
🗣️ 情景例句
I'm glad to have met you.
非常高兴认识你。
Let difficulties occur but not the loss of courage.
纵使困难重重，也不丧失勇气。
If there had not been a hard layer of rock beneath the soil, they would have completed the job in a few hours.
如果不是因为土壤下面有一层坚硬的岩石，他们的营救工作仅用几个小时就可以完成了。