飞行员遵守了下降指令。

The pilot ___complied with instructions to descend.

为了遵守甚至最高的安全标准，WEB-DMS 配备了尖端加密和访问控制技术。

To ___comply with even the highest security standards, WEB-DMS features cutting-edge encryption and access control technologies.

所有公司都必须遵守环境法规。

All companies must ___comply with environmental regulations.