Main content
蜜芽传媒 Media English 媒体英语: Smoking causes DNA changes in our body 吸烟引发人体内基因改变
A story about DNA mutations and cancer
Duration:
This clip is from
More clips from 蜜芽传媒 Learning English
-
蜜芽传媒 English in a Minute “一分钟英语”:四个包含单词 “gold” 的短语
Duration: 01:11