第3课 An unknown Goddess
1、 The city at one time must have been prosperous, for it enjoyed a high level of civilization.
这座古城肯定一度很繁荣，因为它曾享有高度的文明
Must have。。表示推测
2、 She stood three feet high and her hands restedon her hips.
她身高3英尺，双手叉腰。
