工程师做了一些调整以提高机器的效率。

The engineer made some ___adjustments to improve the machine's efficiency.

试穿之后，她要求对她的裙子做一点小的修改。

After the fitting, she requested a minor ___adjustment to her dress.

客户提出了一些反馈意见，并要求对合同做一个小小的调整。

The client had some feedback and requested a small ___adjustment to the contract.