“合法的”造句

既然出售香烟是合法的，那么禁止做香烟广告就是违宪的。
Banning cigarette advertising would be unconstitutional, since selling cigarettes is legal.

别担心，交易是完全合法的。
Don't worry; the deal was completely above board.

这笔生意看起来是合法的。
The business seems legit.