Doctors are complaining about being barraged by drug-company salesmen.医生们抱怨他们疲于应付医药公司的销售人员。They are naturally good salesmen with the gift of the gab.他们天生就是能说会道的推销能手。Salesmen of unofficial souvenirs have also been doing a...
温度还会影响分解的速度,从而影响养分流的速度.Temperature also affects the rate of decomposition and thus the nutrient flux rate.其次, 夹管阀技术使得这个城市能够调节分流的流量.Secondly, pinch valve technology allows the City to regulate the amount of flow diverted....