这些基础工作通常由下级员工完成。

These ___lower-level tasks are usually handled by junior staff.

这个任务适合初级员工处理，因为它比较简单。

This task is suitable for ___lower-level employees as it's less complex.

请把箱子放在较低的架子上。

Please put the boxes on the ___lower-level shelf.