你并不知道你以前的收藏品多珍贵的英文

you do not know how much your collection of the backs

• 你:    you
• 并不:    not; not at all; b ...
• 知道:    know; realize; be ...
• 以前:    before; formerly; ...
• 的:    4次方是 The fourth po ...
• 收藏品:    collection
• 多:    many; much; more
• 珍贵:    valuable; precious ...