Bluejacket
n. 水兵
📖 牛津释义
bluejacket
n seaman in the navy 水兵.
🗣️ 情景例句
Get to the point.
请进入正题。
I will look down the hallway.
我往下看大门口吧。
The further off this solid obstruction, the longer time will elapse for the return of the echo.
固体障碍物越远。回声返回所用时间就越长。