Nigrometer
黑度计
🗣️ 情景例句
This job is hard work.
这活儿太累人了。
What color is your book?
你的书是什么颜色？
Seeing a cake flying through the air, a lorry driver who was drawing up alongside the car, pulled up all of a sudden.
此时，一辆卡车正好从后边开到那辆汽车边上，司机看见一块蛋糕从天而降，紧急刹车。