Trianion
三阴离子
🗣️ 情景例句
What would you like to eat?
你们要吃点什么？
Would you please clarify your question?
请你把你的问题说清楚好吗？
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。