Cepheid
造父变星
🗣️ 情景例句
the other night when I was trying on my new clothes.
也就是我试新衣服的那天晚上。
Better wear out shoes than sheets.
宁可（经常运动）穿破鞋子，也不（因病长卧）磨破床单。
and another group were disturbed for an equal period of time but when they were no exhibiting eye-movements,
另一组人也是连续几夜被叫醒，但是在眼球队没活动时被叫醒的。