infect

vt.

1. (受)传染
   • Dirt infected an open cut.
     尘土会使敞露的伤口受到感染。
   • Whole societies become infected by these vices.
     整个社会都被这些恶习所腐蚀。
2. 污染
   • Waste gases infected the air.
     废气污染了空气。
3. 影响
   • Mary's high spirits infected all the girls in the class.
     玛丽的兴致感染了全班的女孩。