您要查找的是不是：
- percentage of dust dropping 落杂率
- The motor car disappeared in eddy of dust. 汽车在一片扬尘的涡流中不见了。
- What percentage of the earth is covered by oceans? 地球上百分之多少被海水覆盖着？
- There is a fine layer of dust on the desk. 桌子上有一层薄薄的尘土。
- We have only a small percentage of foreign books. 我们只有一少部分外文书。
- The car went past in an eddy of dust. 那汽车在一阵滚滚的尘土中驰过。
- A fine layer of dust covers everything. 所有的东西都盖了一层薄薄的灰尘。
- What percentage of children were absent? 缺席的学童占百分之几?
- The mirror is covered with a film of dust. 镜子蒙上了一层灰尘。
- Each of them got a percentage of the profits. 他们每个人都得到一部分利润。
- I've got a speck of dust in my eye. 我眼睛里弄进了一粒灰尘。
- Whisky contains a large percentage of alcohol. 威士忌所含酒精的百分比很高。
- Eddies of dust swirled in the road. 路上尘埃滚滚。
- What percentage of his income is taxable? 他的收入有多少需纳所得税?
- The carriage left a trail of dust. 马车后扬起了一缕烟尘。
- There's not a speck of dust in their house. 他们的屋里没有一点儿灰尘。
- The cars set off in a cloud of dust. 那些汽车在滚滚尘埃中启动了。
- Do you know the percentage of the damaged portion? 你们知道残损部分的百分比吗？
- The percentage of unskilled workers is small. 非熟练工的比例很小。
- The truck left clouds of dust in its wake. 车后扬起了一阵尘土。
