receive (his doctor's) degree 获得(博士)学位
reduce sb./sth. to sth./doing 使……沦落为、降格为
refer to ①指的是 ②指到、说到、提及、谈到
refer to sth. as 把……看作
regard sb./sth. as 当作、认为
regret doing 悔恨做过……
regret to do 后悔去……
rely on sb. 依赖某人
remain in business 继续营业
remain in poor health 身体不好
remember doing 想起来做过
remember sb. to sb. 让某人记住某人
remember to do 想起来该做
remind sb. of sth./sb. 让某人想起……、提醒某人……
remind sb. that 提醒某人……
reply that… 回答说
reply to 答复
