Roughmeter
粗糙度计; 粗糙度仪
🗣️ 情景例句
Remember, the number 1 train. The uptown platform.
记住，搭一路车，在北月台 。
A wicked book is the wickeder because it cannot repent.
一本坏书危害无穷。
The railway station was big, black and dark.
火车站很大，又黑又暗。