Elementary transformation
[计] 初等变换
🧩 词语组成解析
🗣️ 情景例句
Sorry, Richard. They don't have it.
对不起 Richard 他们那里没有。
You say it, but you don't mean it.
口是心非。
it would be up and down, to and for and from side to side.
呈现出上上下下、来来回回、左左右右3种性质的运动。