Tributariness
n. tributary的变形
🗣️ 情景例句
Good work.
做得好。
Deliberate before you begin, then execute with vigour.
著手前要深思熟虑，执行要果断有力。
and a period (which is the time it takes a wave crest to travel one wave length).
和周期（浪峰走过一个波长所需的时间）。