1. The doctor prescribed a medication dosage of 500 mg to be taken twice a day.
医生开了一种药物，建议每天服用500毫克，每日两次。

2. Make sure to measure out exactly 100 mg of the powder for the experiment.
确保粉末实验中测量出100毫克的粉末。

3. The recommended daily intake of vitamin C is 60 mg for adults.
成人每日建议摄入维生素C为60毫克。

4. This supplement contains 200 mg of calcium per serving.
这种补充剂每份含有200毫克的钙。

5. The poison control center advised giving the patient 250 mg of activated charcoal.
毒物控制中心建议给患者服用250毫克活性炭。

6. The label on the bottle indicates that each tablet contains 50 mg of ibuprofen.
瓶子上的标签显示每片含有50毫克的布洛芬。