polar recombination的用法和樣例：
例句
- This genetic recombination will soon yield a cutting-edge viral attacker that is both contagious and lethal.
病毒遺傳物質(zhì)的重新組合會(huì )很快地使它產(chǎn)生非常厲害的攻擊利器，不但具有傳染性，而且會(huì )致命。 - Thefinal evolution of the flagellum might then have involved only thenovel recombination of sophisticated parts that initially evolved forother purposes.
鞭毛的最終出現，可能僅僅來(lái)自本來(lái)向其它方向進(jìn)化的復雜器官的重新組合。
