Untethered
vt. 解下拴牛马的绳或链
🗣️ 情景例句
Your birthday is tomorrow, isn't it?
你明天生日 ，是吗？
Whom will you race with?
你将和谁比赛？
a wave length (the horizontal distance between two wave crests),
波长（两个浪峰间的水平距离）