Finally, the paper tries to propose the solution to the imbalance between the water supply and requirement from the perspective of water guarantee effects during the urbanization process.

最后，从城市化进程中水资源的保障作用角度出发，提出解决水资源供需矛盾的对策和措施。

youdao

Chemotherapy is prescribed with no guarantee of effectiveness and can cause wretched, and sometimes fatal, side effects.

FORBES: A Dying Cancer Patient's Plea For Personalized Medicine

He said there was no guarantee that introducing a specific genetic change would have much impact in a population which was subject to the effects of many other natural selection processes.

BBC: The malaria parasite is spread by mosquitoes