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碧落的海
你好!二重double 英[ˈdʌbl] 美[ˈdʌbəl] adj. 双的; 两倍的; 两面派的; 双人用的; vt. 使加倍; 把…对折; 重复; vi. 加倍，加倍努力; 快步走; [例句]The government committed a double blunder政府重蹈覆辙。
Meow儿儿
It is divided in two stages to carry on ,the first half of the year and the second half of the year. And it will be carried out three times in the second stage.上半年与下半年:the first half of the year and the second half of the year
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