Now here we have a situation where you have a completely concocted food, you have something like Twinkies to begin with, not something found in nature.

面对的全是人工调制食品,而非纯天然食品,以夹馅面包为例

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

So, Lewis structures are really a model for a way to think about what the valence electron configuration is, and as I said, it's not based on quantum mechanics, it's something that Lewis observed far, far before quantum mechanics were discovered.

路易斯结构实际上是一个用来考虑价,电子排布的模型，而就像我说的，它并不以量子力学为基础，而是路易斯在以前发现的,在量子力学出现很早前。

麻省理工公开课 - 化学原理课程节选

It has rested on religious authority, tradition, and power.

而以宗教权威,传统和权势为基础

耶鲁公开课 - 古希腊历史简介课程节选

Certain segments of DNA are being converted into RNA, and whereas in replication, you have to copy the whole genome, the whole - all of the chromosomes, all of the DNA contained in the chromosomes of the cell in order to completely replicate it; transcription only works on particular sequences of DNA.

特定的DNA序列被转录为RNA,在复制的过程中,整条染色体都被复制,包括其中的全部DNA序列,都被分毫不差地复制下来,以保证复制的完整性,而转录过程只发生在特定的DNA序列上

耶鲁公开课 - 生物医学工程探索课程节选