单词	tax free profit
释义	tax free profit 免税利润
随便看	operator guidance indicator operator guide operator guide system operator handled call operator-handled toll call operator handler Operator has been supplanted by operator held control box operator-held control box operator hierachy operator hierarchy operator hold operator homomorphism operatorial operator ID operator identification operator identifier operator identities operatories operator in charge operator indicator operator indicator light operator-indicator lights operator induced failure operator inequality