目 录 上一节 下一节 
朋友说他住在东山.你说，你听说过那个城市. I don't know him, but I know of him. 你到朋友家，他的父亲就是那位著名的工程师.你说，不认识，但是听说过. He is known by everyone as a good dentist. 朋友牙痛，你推荐了一位Jones医生.你说，他是人所周知的好牙医. Mary is known for her intelligence. 你了解Mary.你说，她是因聪颖而出名的. It's known as tension from a psychiatrist's point of view. 你谈到最近生意上的事使你不思茶饭，经常失眠.朋友说，心理医生称这为紧张. 
朋友打听一家信得过的美容院要去做面膜.你告诉他，你知道一家美容院. She must be well known as an excellent dancer. 她说母亲是把芭蕾带进中国的舞蹈家.你说，她一定是以一个优秀的舞蹈家而著称于世的.
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