All these cells come from the bone marrow and biologists have traced the formation of these cells in great detail.

所有这些细胞都来自骨髓,而生物学家已经很详细地,研究了这些细胞的形成过程

耶鲁公开课 - 生物医学工程探索课程节选

that are just the, you know, one or two stores rather than the chains.

他们只有一两家店，而不是连锁店。

做头发是免费的 - SpeakingMax英语口语达人

I don't know if you know the story, but Labyrinth Books is independent, it's not a chain, and independent bookstores are trying-struggling--to survive.

不知道你们是否了解,"迷宫书店"家是独立书店 而非连锁书店,对于独立书店来说,生存下去非常艰难

耶鲁公开课 - 金融市场课程节选

And linguists have all of these conditions they say, "No language in the world works this way."

而语言学家们知道这些条件,他们会说"世界上没有语言会这样表达"

耶鲁公开课 - 心理学导论课程节选

And she comes to your house, she is shivering because she's so cold.

她走进你的家时还在因为寒冷而瑟瑟发抖。

How about 课堂 - SpeakingMax英语口语达人