Mathematical pendulum
[化] 数学摆
🧩 词语组成解析
🗣️ 情景例句
This sentence doesn't make any sense.
这个句子完全讲不通。
He is playing on the see-saw in the yard.
他正在院子里玩跷跷板。
Before Annie Sullivan came to our house, one or two people had told my mother that I was simple-minded.
安妮·莎利文来到我们家之前，已有一两个人告诉我母亲，说我头脑简单。