砂岩和页岩单元是同时的.The sandstone and shale units are of the same age.恢复与治疗是同时的.Recovery was synchronous with therapy.同时的意思是在同一瞬间.Simultaneous means " at the same instant. "...
A pH test measures the acidity or alkalinity of a substance.pH值测试可检测物质的酸碱度。This plant prefers alkaline soil, though it will readily tolerate some acidity.这种植物在酸性土壤中也能生存, 但硷性土壤更加适宜.Acidity in soil can be neutralized by sp...
She vacillates between men twice her age and men younger than she.她犹豫不决，不知道是该选择年龄比她大一倍的男人还是比她小的男人。The Policeman hesitates, vacillates, then takes another rather uncertain step or two forward.警察犹豫了一下, 满腹狐疑地又往前挪了一两步.As Pru...