Chemist's
[ ['kemists] ]
辅助 Assistant
n. 药店
✅ 同义词
🗣️ 情景例句
and I stayed out an extra half hour.
我还特别多待了半个小时。
From a little spark may burst a mighty flame.
星星之火可以燎原。
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。