IT is always hard for a small fish to live in a big pond. Pluto's recent departure from the classical planet family clearly proves that size really matters.
IT is always hard for a small fish to live in a big pond. Pluto's recent departure from the classical planet family clearly proves that size really matters.
译：小鱼要在大池塘里生活下去通常是不太容易的。最近冥王星被从经典行星家族中除名就印证了这一点，体积大小真的事关重大。