yán / jiū / rén / yuán / zhèng / zài / tàn / suǒ / rú / hé / bǎo / hù / rǎn / sè / tǐ / shàng / de / duān / lì研究人员正在探索如何保护染色体上的端粒。Researchers are exploring how to protect the telomeres on chromosomes.