20北极星：原指小熊星座(ursa minor)中的北极星(the pole star)，引导古代航海者(特别是古代腓尼基人)的星宿，所谓"a guiding star"。后引申为最能引起人们注意的事物。
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the pole star
北极星
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The Pole Star appears to be changing from a star that pulsates.
北极星似乎由一颗脉动的恒星衍变而来。
《柯林斯英汉双解大词典》
The seekers guided by the pole star.
被北极星引导的寻找者。
youdao
By habit, he looked upwards and saw Orion, the Big Dipper and the Pole Star, twinkling in the autumn sky.
习惯地，他往上看去，看到了猎户星座、北斗七星和北极星在秋季天穹下熠熠发光。
The altitude, low temperatures and lack of sunlight (at least during the Antarctic winter) make the atmosphere at the pole ideal for star-gazing.
ECONOMIST: Cosmology
The flag of the People's Republic of China is red with four small yellow stars surrounding one larger star on the upper corner near the flag pole.
BBC: Vietnam makes China flag faux pas
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