call premium meaning in Chinese

期前兑回溢价
收回溢价
赎回溢价
提前兑回溢价
提前赎债溢额
先期偿还债券溢价
需要溢价

Does standard support service include advanced support ( formerly called premium service
标准支持服务中包含现场服务吗？
If the forward rate is above the spot rate , the difference is called premium , if the forward rate is below the spot rate , the difference is known as a discount
如果远期汇率高于即期汇率，其差额叫做升水；如果远期汇率低于即期汇率，其差额叫做贴水。