Averaging operator
[计] 求平均数算子
🧩 词语组成解析
[计] 求平均值
🗣️ 情景例句
I'd really like to pick up Grandpa at the railroad station.
我真想去火车站接爷爷。
A plant may produce new flowers; man is young but once.
花有重开日，人无再少年。
A sound made by tapping on the hull of a ship will be reflected from the sea bottom,
敲打船体所发了的声音会从海底传回来，