1、On the understanding that...; Bon this understandingon condition that...; on this condition

2、I'll do it on condition that you pay for everything.

3、John will go on condition that Mary is invited too.

4、I'll come on condition that my parents are invited, too.

5、He will lend you the money on condition that you return it on time.

6、I can tell you the truth on condition that you promise to keep a secret.

7、Visitors are allowed in the gardens on condition that they don't touch the plants.

8、We'll let you use the room on condition that you keep it clean and tidy.

9、I'll allow you to go out on condition that you do not fight against other children.

10、You may borrow the book, on condition that you return it within a month.

11、And Mrs. Crupp consented to achieve this feat, on condition that I dined from home for a fortnight afterwards

12、Therefore, in my opinion, college students should attend good lectures on condition that they do their class work as well.

13、This method can obtain step model by proceeding multistep measuring on condition that device working normally. Application result indicated that it is feasible and practical on engineering.

14、The results show that natural convection can be formed on condition that the body force acting on the fluid is a non-conservative one.

15、In his speech, Mr. Ayrault declared that France was ready to make proposals, but on condition that the objective was "integration solidaire", or integration with solidarity.

16、All right, we agree to reduce our price by 3% on condition that you guarantee to open the credit on time .

17、The captain of the French team offered to buy the case for him on condition that he won his match in the upcoming competition.

18、The way of computing immediate predecessor (successor) of the new element is given, so the problem of constructing concept lattice is solved on condition that the attribute set is constant.