top something up add to a number or amount to bring it up to a certain level 添加数字（或数额）以达到： a 0.5 per cent bonus is offered to top up savings rates. 提供0.5%奖金以补足储蓄率。 ■ add additional credit to a pay-as-you-go mobile phone account 增加即用即付手机账户信用额度。 ■ fill up a glass or other partly full container 注满杯子或其他半满的容器。 |