"dirty," by 1845, from grub (n.) in a sense of "dirty child" (who presumably got that way from digging in earth) + -y (2). Earlier it was used in a sense of "stunted, dwarfish" (1610s) and "infested with grubs" (1725). Related: Grubbily; grubbiness.
实用例句
1. They knock around on weekends in grubby sweaters and pants.
他们周末穿着邋遢的毛衫和裤子到处闲逛。
来自柯林斯例句
2. His white coat was grubby and stained.
他的白色外套污迹斑斑，简直脏透了。
来自柯林斯例句
3. I pressed a dime into his grubby mitt.
我把一个十分硬币塞进他脏兮兮的手里。
来自柯林斯例句
4. Stringy blonde hair, in need of combing, spilled over a grubby pillow.
