军机

tā men jié jìn quán lì bì miǎn yí wù jūn jī

他们竭尽全力避免贻误军机。

They tried their best to avoid delaying the fulfilment of a military plan.

tā bèi zhǐ kòng xiè lòu jūn jī

他被指控泄漏军机。

He was accused of leaking military secret.

yī jià jūn jī

一架军机

a military plane