There is an art exhibition on in the city,and there exsits a book written by Romanin Rolland in the class of masterpiece.A woman said that:"take a look at it,how shrewd they are,the cooperation of a younger sister and a older sister ."A person aside angrily said that:"are youilliteracy or not,are that two sisters together?That's done by a younger brother and a older brother.希望能帮上你！！
