Luffing
俯仰运动, 上下摆动, 起重机臂的转动
🗣️ 情景例句
The rest of our family went to the movies.
我们家其余的人都去看电影了。
It's a beautiful country with many large lakes.
它是一个有许多大湖的美丽的国家。
In the light of this statement, teachers live by selling knowledge,
根据这种说法，教师靠卖知识为生，哲学家靠卖智慧为生，