Noun:

1. the quantity of an active agent (substance or radiation) taken in or absorbed at any one time

2. a measured portion of medicine taken at any one time

dosen.剂量；一剂；一服vt.给 ... 服药

amountn.数量；总额vi.总计；等于

quantityn.量；数量；大量

measuren.措施；量度；尺寸；程度；办法v.测量；比较；给予；权衡

prescriptionn.处方；药方；对策

1. Do not exceed the recommended dosage.
   不要超过规定的剂量。
2. But high dosage intake is dangerous.
   但是高剂量的摄入是比较危险的。