Kinsmen
n. 亲戚（kinsman的复数）
🗣️ 情景例句
We'll do that immediately.
我们可以立即跟她谈。
Cheat's never proper.
欺骗决非正当事。
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）。