rateable value（指地产在出租当时的租金估价） 从续期之日起，每年交纳相当于该土地～3%的租金，此后，随～的改变而调整租金。An annual rent shall be charged from the date of extension equivalent to 3 per cent of the rateable value of the property at that date,adjusted in step with any changes in the rateable value thereafter.