primary rate的用法和樣例：
例句
- Say zero point two five per cent above your base rate.
就比基本利率高零點(diǎn)二五個(gè)百分點(diǎn)吧。 - Banks are charged the Base Rate with respect to the first 50 per cent of their holding of Exchange Fund Bills and Notes.
銀行在貼現窗借款，須按基本利率為不超過(guò)所持外匯基金票據及債券總數一半的借款支付利息。
