happy是形容词,happily是副词,在这里用来形容聊天这个动作,聊天聊得很开心,如果想用happy,如:They were very happy when they talked with each other on and on.
明白了吗?形容词用来修饰名词,在这里即修饰人,副词用来修饰动词
happy是形容词,happily是副词,在这里用来形容聊天这个动作,聊天聊得很开心,如果想用happy,如:They were very happy when they talked with each other on and on.
明白了吗?形容词用来修饰名词,在这里即修饰人,副词用来修饰动词