可以组成单词dose，意思是：n.剂量;(药的)一剂，一服;一份;一次;一点。vt.给(某人)服药。
例句：1.It is dangerous to exceed the recommended dose. 超过建议使用的剂量会有危险。
2.The pharmacist carefully measured out a dose of herbal medicine and told me how to brew it. 药剂师仔细地配好一服中药，并告诉我煎药的方法。
3.Take one dose of the medicine at bedtime. 就寝时服用该药一次。
