Restorator
[医]恢复器（下肢屈伸运动练习器）[商]
🗣️ 情景例句
Please do the work at your own convenience.
请在方便时把这事做一做。
How much does that typewriter weigh?
那台打字机重多少？
The first thing I saw when I entered the art gallery was a notice which said:
走进展厅首先看到的是一张告示，上面写着