我们坐在树下，看着头顶飞过的鸟儿。

We sat under the tree, watching the birds fly ___overhead.

我们每月需要支付高额的办公场地租金和水电费这些间接成本。

Our monthly ___overhead includes high rent and utility bills for the office space.

他在排球比赛中用一记漂亮的过顶扣杀得分。

He scored with a perfect ___overhead smash in the volleyball game.

飞机从我们头顶飞过。

The plane flew ___overhead as we stood outside.