grade A milk 甲级牛奶 ; 甲级乳
A milk bottle 一瓶奶 ; 一瓶牛奶
a milk grid 奶粉格
a milk can 牛奶罐
This is a milk bottle 这是瓶牛奶
She had a milk bottle 她有一瓶牛奶
a milk float 运牛奶的平板车
a tall milk shake 一大杯奶昔
a milk carton 盛牛奶的纸盒
scour out a milk bottle 洗擦奶瓶内部
She was a milkmaid. She had to get up very early every morning and go to the barn to milk the cow.
VOA: special.2010.11.20
One example of a way people have used this, is that they've taken the gene that ordinarily produces a milk protein.
利用这种方式的一个例子就是,他们把原本产羊奶蛋白的基因剔除
In this case the promoter, which is a sequence of DNA that is positioned right in front of the gene of interest, the promoter is the betagalactoglobulin promoter in this case, and betagalactoglobulin is a milk protein.
这里涉及到的启动子,也是一段DNA序列,它必须刚好位于目的基因序列前端,我们用到的是β-乳球蛋白启动子,β-乳球蛋白是乳汁中的一种蛋白
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