xīn xíng / zhàn dòu jī / xū yào / jīng guò / shì fēi yuán / de / yán gé / cè shì / cái néng / tóu rù / shēng chǎn

新型战斗机需要经过试飞员的严格测试才能投入生产。

The new fighter jet must undergo rigorous testing by test pilots before it can go into production.