Plastofilm
[商]再生盐酸橡胶塑料
🗣️ 情景例句
Then think about the word in a sentence.
然后把这个词放到句子的环境中去。
Math major
专攻数学
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。