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原级：troop
第三人称单数：troops
第三人称复数：troops
trooping的翻译
过去分词：trooped
过去式：trooped
1. It is in corporate America trooping to Washington for trade protection to fend off this new threat.
2. trooping是什么意思
2. Marked by a parade and a military ceremony known as " Trooping the Color ", the celebration this year falls on June 13.