交

• He has got an extension to finish writing his thesis .
  他获准延期交论文。
• It is difficult to make friends with her .
  跟她交朋友十分困难。
• Of these guides they made friends .
  他们同这些向导交上了朋友。
• Why do not you entrust that to a travel agency ?
  为什么你不交托给旅行社呢？
• My request for transfer is in .
  我已经把调职的申请交上去了。
• Babies often fall down when they are learning to walk .
  小儿学步时常会跌交。
• He is behind in handing in homework .
  他没能按时交家庭作业。
• Go over your work carefully before you hand it in .
  交作业前要仔细检查一下。
• I want to be friends with everybody .
  我要和所有的人交朋友。
• A fluctuating magnetic field is produced in the iron .
  铁心中就产生交变磁场。