✅ 同义词
🔴 反义词
🗣️ 情景例句
Well, hi, fellas.
你们大家好。
By doing nothing we learn to do ill.
懒散学为非。
namely 6 million million miles.) Radio waves also travel at the speed of light,
即6万亿英里）。无线电波也是以光速传播的。