on condition that

中英例句：

1. The juvenile offender was released from custody on condition that he should find a job immediately and stay out of trouble for six months.
   那個年輕的罪犯已從拘留所釋放，條件是：他應該馬上打一份工作，六個月內不得惹事生非。
2. Medieval system, where land was grant by a king to his aristocracy, and by the aristocrat to the peasant, on condition that each pay a service( or feudal duty) to his superior.
   一種中世紀的制度：國王將土地轉讓給貴族，貴族再轉讓給農民。條件是每個人必須向他上級服役或交稅。
3. I'll come on condition that John is invited too.
   如果約翰也受到邀請，我就來。
4. I will go abroad on condition that my husband goes with me.
   如果我丈夫能和我一起去，我就出國。