In the natural course of events cows would wish to be milked more than twice a dayIn the natural course of events cows would wish to be milked more than twice a day
按照事情发展的自然规律，母牛每天应该挤奶两次以上。
The natural course of chronic HBV infection is now perceived as consisting of 4 phases: immune tolerThe natural course of chronic HBV infection is now perceived as consisting of 4 phases: immune toler
【结论】异丙隆是小分子，本身没有免疫活性，也没有与载体蛋白偶联的活性基团。
Events took their natural course.Events took their natural course.
事态依自然进程发展。
