subgiant英'sʌbdʒaɪənt美'sʌbdʒaɪəntCOCA³¹⁵¹¹¹⁺⁴ 基本例句 n.亚巨星¹⁰⁰ It has become what astronomers call a subgiant, or a star that has exhausted all of its hydrogen fuel in the core and is on its way to becoming a red giant. 它已经变成了天文学家所谓的‘亚巨星’,也就是说成为已经耗尽了核心中氢燃料的恒星,并且正在变成红巨星。 kekenet