Pendulation
[化] 摆动
🗣️ 情景例句
I have a picture of Grandpa and Dad and me in my wallet.
我皮夹里有一张照片，是爷爷、爸爸和我在一起照的。
In prosperity think of adversity.
居安思危。
People had to use other ways to record information.
人们只得使用其他方法记录资料。