top up什么意思？

top up的音标：top up的英式发音音标为：[tɔp ʌp]top up的美式发音音标为：[tɑp ʌp]...

Anyone ready for a top-up?谁还要再满上？Top up the radiator before making a long journey.在长途旅行前加满散热器.Student grants will be frozen at existing levels and top-up loans made available.学生助学金将冻结在现有水平，但可以申请补足贷款。...