先不要管那些等而下之的产品的英文

don't bother about those lower down

• 先:    earlier; before; f ...
• 不要:    don't
• 管:    pipe; tube
• 那些:    those
• 等而下之:    from that grade do ...
• 的:    4次方是 The fourth po ...
• 产品:    product; produce; ...