knowledgeable sources中文什么意思

• 有见识的人士

• knowledgeable:    adj. 〔口语〕有知识的；精明的。 a knowled ...
• source:    n. 1.源头，水源，源泉。 2.根源，本源；来源。 3 ...
• be knowledgeable:    知识化
• knowledgeable:    adj. 〔口语〕有知识的；精明的。 a knowledgeable question 有见地的问题。 a knowledgeable student 有头脑的学生。
• be courageous and knowledgeable:    有胆有识

例句与用法

1. I have been told by knowledgeable sources that in the elevator and escalator business , service is the biggest moneymaker in the long run
   专业人士告诉我在电梯扶梯维修保养这一领域,用长期发展的眼光来看维保是最大的利润来源。