less‧en 减少 / ˈles?n / [intransitive and transitive] to become smaller in size, importance, or value, or make something do this ᅳsynonym reduce lessen the risk/chance/possibility etc (of something) Exercise lessens the risk of heart disease. lessen the impact/effect/importance (of something) The new project will lessen the effects of car pollution.Gradually her anxiety lessened.
short‧en 缩短 / ˈʆɔːtn $ ˈʆɔːrtn / [intransitive and transitive] to become shorter or make something shorter ᅳopposite lengthen (E) also shortens the advance-purchase requirement for family travel to a minimum of seven days rather than 将the advance-purchase requirement for family travel 缩短至最小7天 而不是 14天 (并不知道以前是不是14天) (D) also lessens the advance-purchase requirement for family travel to a seven-day minimum from 将the advance-purchase requirement for family travel从14天减少至最小7天 (但是from前后不对称,后面加一个minimum) 说明"以前是14天,现在是7天" 这一题从意思上来看过于怪异了, 但只要细细品味对称原则,是可以搞定它的 |