Sigma
[计] 求和\\n[医] σ(希腊文第十八个字母)
🗣️ 情景例句
I cannot walk at that pace.
我不能以那种步速行走。
There is a small choice in rotten apples.
朽木不可雕。
Every day he made one of the smaller animals bring him something to eat.
每天他让一只小动物拿东西来给他吃。