a。do not boil your milk for a long time。just heat it up for several minutes。
b。do not drink milk and tea,orange juice or cola at the same time。
c do not drink milk when your stomch is empty。eat some bread before you drink it。
d。drink some milk after you get up and before you go to bed。
e。put the leftover milk in the fridge。
f。drink milk at any time when you are thirsty。
选择啊,(可多选)
选择,(可以多选)
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