不及物动词

名词

1. any of numerous small rodents typically resembling diminutive rats having pointed snouts and small ears on elongated bodies with slender usually hairless tails

2. a hand-operated electronic device that controls the coordinates of a cursor on your computer screen as you move it around on a pad
on the bottom of the device is a ball that rolls on the surface of the pad

e.g. a mouse takes much more room than a trackball

Synonym: computer mouse

3. person who is quiet or timid

4. a swollen bruise caused by a blow to the eye

Synonym: shinerblack eye