酒窝征是癌肿侵犯乳腺（）；桔皮征是癌细胞侵犯（），致使皮肤（）障碍所致。
参考答案：Copper’s韧带； * * 淋巴管；淋巴回流
任意买一张电影票，座位号码是奇数，属于（ ）事件．
用所给单词的适当形式填空。
1. What are people _____ (suppose) to do when they meet for the _____ (one) time?
2. We never visit a friend's house without _____ (call) first.
