Mark has been Luke's sidekick since junior high school.打从初中开始,马克和卢克一直就是哥儿俩.They were stuck on each other ever since junior high school.打从初中开始,他们就彼此相爱.What is your best memory from junior high school?初中最好的记忆是什么?...
Minute fragments of shoot apices are proverbially difficult to culture.微小的茎尖切段通常是难以培养的.This concept has now been replaced, for stem apices, by the tunica - corpus theory.此观点目前已经被原套原体学说所取代....