Each student's progress is closely monitored.

每一位同学的学习情况都受到密切的关注。

He's closely monitored the development of electric powered aircraft.

他一直在密切跟踪电动飞机的开发工作。

Rumours of possible human cases in neighbouring countries are also being closely monitored.

对邻近国家可能发生人间病例的流言也正在严密监测。

Once released, the cub will be closely monitored through hidden cameras to ensure its safety.

放养后，熊猫幼崽会被隐藏的摄像机密切监测，以确保它的安全。

Conclusion the use of rituximab treatment should be closely monitored to ensure the safety of drug use.

结论使用利妥昔单抗治疗应严密监护，保证用药安全。