Variation analysis
[经] 差异分析
🧩 词语组成解析
🗣️ 情景例句
Who is your best man?
谁是你的伴郎？
No, Jack. You must go on.
不行，杰克。你必须继续下去。
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。