医生直言相告，并做了最坏的预测。The doctors didn't mince their words, and predicted the worst.最坏的情况是你可能会无家可归。In the worst-case scenario, you could become a homeless person.我是天生的悲观主义者。我总是做最坏的打算。I'm a natural pessimist; I usuall...
非离子型表面活性剂有聚氧乙烯缩合物糖酯和烷基胺氧化物.Nonionics include polyoxyethylene condensates, sucrose esters and alkyl amine oxides.非离子型表面活性剂有聚氧乙烯缩合物, 糖酯和烷基胺氧化物.Nonionic surface - active agents include polyoxyethylene condensates, sucrose e...