VOA慢速英语:新技术让科学家研究细胞

analyze – v.to study (something) closely and carefully; to learn the nature and relationship of the parts of (something) by a close and careful examination

breakthrough – n. a sudden increase in knowledge or understanding; an important discovery that happens after trying for a long time to understand or explain something

mutation – n. biology change in the genetic structure of a plant or animal that causes physical qualities that are different from what is normal

DNA– n. short for deoxyribonucleic acid.the carrier of genetic information

pattern– n. a model suggested for copying; something designed or used as a model

variant– n.one of two similar, but somewhat different things

sample– n.a representative part of something or a single object from a larger group