My mother worked on her knees cleaning the homes of the better-offwhite ladies in town and took in laundry.
我母亲跪着为富有的白人太太打扫房间，清洗衣物。
2
Suspended on their stilts, the actors remove their masks and reveal their off-white faces, staring terrified at a sunless sky, dark clouds congregating.
演员们被吊在高跷上，他们摘下面具，露出他们苍白的脸，惊恐地盯着没有阳光，乌云聚集在一起的天空。
3
It occurs as a white to off-white, crystalline solid, poorly soluble in water, dilute acid and most organic solvents.