这是一个主语从句.正常语句为:How the capacity to visualize objects is not obvious.
但这样就使得句子不平衡,为避免这种情况,用it 代替,而把主语放到后面,英语中还有很多连接代词或连接副词可这样用,再如:It is unknown where the meeting will be held.常用:It is unknown where the meeting will be held.你可以看看语法主语从句.
这是一个主语从句.正常语句为:How the capacity to visualize objects is not obvious.
但这样就使得句子不平衡,为避免这种情况,用it 代替,而把主语放到后面,英语中还有很多连接代词或连接副词可这样用,再如:It is unknown where the meeting will be held.常用:It is unknown where the meeting will be held.你可以看看语法主语从句.