Jinny
n. 固定绞车, 自重滑行坡
🗣️ 情景例句
It might be simpler and less expensive .
这样可能比较简单而且省钱。
This is a licence.
这是一张执照。
To escape from the Earth in a rocket, one must travel at seven miles per second.
要乘坐一枚火箭飞离地球，火箭的速度要达到每秒7英里，