我认为这个小体积里面，比如金的79个正电荷，电子在外面的某些地方，原子里面大部分是空心的。
So, I've got this tiny volume with, in the case of gold 79 plus of charge, and I've got some electrons out here somewhere, and the vast majority of the atom is nothing.
咬开菠菜，你会发现，菠菜里面是空心的。
Open bite of spinach, you will find, spinach is hollow inside.
田鼠已经舒舒服服地在地底下的楼房中睡着了，猫头鹰安坐在沼地深处一棵空心树里面，兔子、松鼠、狐狸都躲在家里安居不动。 看家的狗在火炉旁边安静地躺着，牛羊在栏圈里一声不响地站着。
The meadow mouse has slept in his snug gallery in the sod, the owl has sat in a hollow tree in the depth of the swamp, the rabbit, the squirrel, and the fox have all been housed.
田鼠已经舒舒服服地在地底下的楼房中睡着了，猫头鹰安坐在沼地深处一棵空心树里面，兔子、松鼠、狐狸都躲在家里安居不动。 看家的狗在火炉旁边安静地躺着，牛羊在栏圈里一声不响地站着。
The meadow-mouse has slept in his snug gallery in the sod, the owl has sat in a hollow tree in the depth of the swamp, the rabbit, the squirrel, and the fox have all been housed.
从前面到后面、从上面到下、从里面到外面，我全身上下都是洞。空心的地方多过实心的地方，但我还是抓得住水。(海绵)。
I have holes throughout, from back to front and top to bottom to core. More nothing than something within, and yet I still hold water. (a sponge).
放学后，小松鼠找到了一棵空心的树，里面铺了树叶和干草，小松鼠盖完了房子完成了作业，高高兴兴地去找小猴子。
After the class, small squirrel found a empty tree, he put some leaves and dry grass in it. Squirrel finished his home work, after that he went to monkey's home happily.
田鼠已经舒舒服服地在地底下的楼房中睡着了，猫头鹰安坐在沼地深处一棵空心树里面，兔子、松鼠、狐狸都躲在家里安居不动。看家的狗在火炉旁边安静地躺着，牛羊在栏圈里一声不响地站着。
The meadow mouse has slept in his 5 snug gallery in the sod, the owl has sat in a hollow tree in the depth of the swamp, the rabbit, the squirrel, and the fox have all been housed.
地球是空心的并且里面包含了巨大的空穴。
地球是空心的并且里面包含了巨大的空穴。
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