up.side 5Qp7saId n [U] (esp. in business) the good, advantageous or pleasant part of something 优点，好处，有利的一面，令人高兴的一面 It's annoying that we can't travel until Thursday, but the upside is that the fare's cheaper then. 恼人的是我们到星期四才能旅行, 但好处是票价会更便宜。☆DOWNSIDE