单词

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Cepheid

['si:fiid]

n. 造父变星；仙王星座的变光星

双语例句

1. Cepheid variable stars are stars whose brightness changes at regular periods.: 造父变星是一种光线按规律周期发生变化的恒星.

2. His first great discovery was made when he recognized a Cepheid variable star.: 他的首次重大发现产生于他认识了一颗造父变星的时候.