Then they add a substance usually harvested from veal stomachs called rennet, a mixture of enzymes that slice the ends off caseins, a kind of milk protein.

这种物质一般从小牛的胃中采集而来，里面含有的多种酶能够切断牛奶中的一种蛋白——酪蛋白的水溶性末端。

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Jack: Oh, no, I don't take milk with my tea, only a thin slice of lemon.

杰克：噢，不用加，我喝茶不加牛奶，只要放一薄片柠檬就行了。

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Pair it with some milk or a slice of Turkey, both rich in the amino acid tryptophan, which also induces sleep.

搭配牛奶或一小份火鸡肉，这些食物富含氨基酸，同样促进睡眠。

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Other options include frozen or regular yogurt topped with dried fruit and nuts, a big slice of banana bread and milk, or even a bowl of pasta tossed with olive oil and parmesan cheese.

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We crave a simple hot cup of tea with a splash of milk while they insist on adding ice cubes and a slice of lemon.

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