Pentamera
五跗类; 五节
🗣️ 情景例句
Can't you figure it out?
找不到答案吗？
I got my hair cut.
我剪了头发。
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。