碧落的海
第一:the fisrt, one...., the most.....,first of all.
第二:the second, addtionally, moreover, furthermore, another.
Take the first right, then the second left.
在第一个路口向右拐,然后再在第二个路口向左拐。
His first music teacher was a major influence in his life.
他的第一位音乐老师是他一生中对他影响非常大的人。
This is the second time it's happened.
这已是第二次了。
It was the second air disaster in the region in less than two months.
这已经是该地区不到两个月内的第二次空难了。
There was a disputed call in the second set.
第二盘比赛有一个有争议的判决。
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