Duff soon mastered the skills of radio produc-tion.达夫很快掌握了广播节目制作的技能。His genius alone has mastered every crisis.仅凭天分，他就控制了所有的危机。I've completely mastered the use of all the words I've learned.学过的词汇我全部掌握了....
Our doctor diagnosed a throat infection and prescribed antibiotic and junior aspirin.我们的医生诊断是喉部感染，并且开了一些抗生素和小剂量阿司匹林。I bandaged the leg up and gave her aspirin for the pain.我把她的腿用绷带包扎起来，并给了她阿司匹林止痛。I don't take any dr...