Premices
处女作；开端
🗣️ 情景例句
He's an aerospace engineer,and works for Orlando Aircraft Corporation.
他担任航太工程师，为Orlando飞机公司工作。
There were 15 votes in favor of my suggestion, and 23 against.
一共有十五票赞成，二十三票反对。
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。