DNA is made of two helicoidal strands, one opposite the other with bases in the center like rungs of a ladder.
DNA 由两条螺旋链组成,一条相对,中间有碱基, 就像梯子的梯级。
单词 | helicoidal |
例句 |
原声例句
TED-Ed(视频版) DNA is made of two helicoidal strands, one opposite the other with bases in the center like rungs of a ladder. DNA 由两条螺旋链组成,一条相对,中间有碱基, 就像梯子的梯级。 |
随便看 |
|
英语例句辞典收录519880条英汉例句词条,基本涵盖了全部常用单词的造句方法及例句,是英语学习的有利工具。