1.to learn English well 是主语,而it作形式主语指代to learn English well
2.need作名词,意为“需求”,meet our needs意为“满足我们的需求”.
3.only作副词修饰词组three of us
1.to learn English well 是主语,而it作形式主语指代to learn English well
2.need作名词,意为“需求”,meet our needs意为“满足我们的需求”.
3.only作副词修饰词组three of us