[usu. in sing.]the time, action, or process of beginning
开始时间;开始
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at the commencement of training 训练开始时
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[mass noun]
the date of commencement .开始日期。
the first part or earliest stage
开始部分;初期
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the commencement of this chapter .这一章的开头。
〈北美〉 (大学或高中的)毕业典礼;学位授予典礼
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[as modifier]
a commencement address .毕业典礼上的致辞。
"Middle English: from Old French, from the verb