adj.姊妹一般的；像姊妹的
Her bright eyes are full of sisterly affection when she speaks to him. 对他说话时，她明亮的眼睛充满了姊妹般的爱。
If you think of me as your sister, let me give you some sisterly advice. 如果你把我当姐姐，那我就给你个姐姐般的建议。
