on condition that

• You can use my bike on condition that you return it by friday
  你可以使用我的自行车，条件是你星期五以前还。
• You can borrow my umbrella on condition that you return it in time
  只要你能按时归还这把雨伞,你可以借去用。
• He can use the bicycle on condition that he returns it tomorrow
  他可以使用那辆自行车，条件是明天必须归还。
• You may use the room on condition that you clean it afterwards
  只要你用完后打扫干净，你就可以使用这个房间。
• I can lend you the bike on condition that you return it on time
  我可以把自行车借给你，但条件是你必须限期归还
• I will lend you the book on condition that you return it on monday
  如果说你能在星期一还我，我可以借给你这本书。
• I can tell you the truth on condition that you promise to keep a secret
  我可以告诉你真相，条件是你答应保守秘密。
• You may borrow the book , on condition that you return it within a month
  你可以借这本书,条件是你要在一个月之内归还
• We may let you use this room on condition that you must keep it clean
  我们可以让你用这个房间，但你要保持房间整洁。
• We ' ll let you use the room on condition that you keep it clean and tidy
  只要你能保持整洁，我们可以让你使用这个房间。