Kearns
[人名] [爱尔兰姓氏] 卡恩斯盖尔语姓氏的英语形式，来源于人名，含义是“黑，暗”(black,dark)
🗣️ 情景例句
She can't sit around and do nothing.
她总不能闲坐着无所事事呀。
Never put off till tomorrow what you can do today.
今天能做的事绝不要拖到明天。
a wave length (the horizontal distance between two wave crests),
波长（两个浪峰间的水平距离）