Regular airlines may offer special rates if you book your flights in advance and fly on certain days of the week when they don't expect to have full planes.
如果你提前订好机票，并且在一周中预计不会满员的特定日子乘机出行，通常情况下，航空公司都会提供特价。
2
There are lots of alternatives to regular, full-priced plane tickets if you can plan far enough ahead.
如果你能提前做好充分的计划，那么除了常规的全价机票，你还有很多其他选择。
3
Since his regular job was boring, I asked him why he just didn't do his sideline full-time.