Definition: to change something in order to improve it Level: C1
我们需要修改计划以降低成本。
We need to ___modify the plans to reduce costs.
这个项目应该被修改，以更好地满足我们的期望。
The programme should be ___modified to better meet our expectations.
科学家们正试图改良这种植物，使其对疾病更具抵抗力。
Scientists are trying to ___modify the plant to make it more resistant to disease.
