Mathematical pendulum
[化] 数学摆
🧩 词语组成解析
🗣️ 情景例句
Let's call room service and order a nice breakfast,
让我们打电话给房间服务部订一份可口的早餐。
He who is afraid of asking is ashamed of learning.
害怕问者耻于学。
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。