Simple pendulum
[化] 单摆
🧩 词语组成解析
🗣️ 情景例句
Please inform him that Chen Gang was calling.
麻烦你通知他陈刚来过电话。
I got a prize.
我得到了一份奖励。
The Hubble telescope was launched into space by NASA on April 20,1990 at a cost of over a billion dollars.
哈勃望远镜于1990年4月20日由国家航空航天局发射升空，耗资10多亿美元。