Even if no change is required to your application code, migration will still take some level of time and effort when all factors are considered.
即使您的应用程序代码不需要改变，当所有的因素都需要考虑的时候，移植仍然需要花费一段时间和努力。
2
If half of autism cases can truly be ascribed to factors in the environment, then a greater effort should be made to identify the environmental culprit or culprits.
如果半数的自闭症病例真的可以归因于环境的因素，那么要更大的努力去证实环境罪魁祸首或者罪犯。
3
Continuing research, technical innovation, and adaptation of the programme strategy to local circumstances were critical factors in the success of the eradication effort.