zhè / gè / guó / jiā / zhèng / zài / yán / fā / xīn / xíng / fǎn / dàn / dǎo / dàn / xì / tǒng / yǐ / tí / shēng / fáng / kōng / néng / lì

这个国家正在研发新型反弹导弹系统，以提升防空能力。

This country is developing a new type of antimissile missile system to enhance air defense capabilities.