我必须将此事向我的上级汇报。

I will have to report this to my ___superiors.

关于预算的任何问题，请直接询问我的直属上司。

Please direct any questions about the budget to my immediate ___superior.

经过数周的讨论，她的上级最终批准了这项决定。

The decision was finally approved by her ___superior after weeks of discussion.