A 6 When we say somebody only goes to the library once in a blue moon, we imply that he seldom goes to the library A 对B 错 正确
A 6 When we say somebody only goes to the library once in a blue moon, we imply that he seldom goes to the library A 对B 错 正确
A 6 When we say somebody only goes to the library once in a blue moon, we imply that he seldom goes to the library A 对B 错 正确