Definition: in a way that is not allowed by law Level: B2
他们非法进入这个国家。
They entered the country ___illegally.
大楼外有一辆非法停放的汽车。
There was an ___illegally parked car outside the building.
他因为害怕而非法购买了一把枪。
He was afraid and bought a gun ___illegally.
