英语词汇“step trench”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	step trench
释义	step trench noun : a trench cut in a series of steps from the base to the top of a mound for determining the cultural levels of an archaeological site
随便看	presuppose presupposed presupposes presupposing presupposition presuppositional opsonifications opsonified opsonifies opsonifying opsonin opsonins opsoniums opsonizations opsonized opsonizes opsonizing opsono- opt opt (for) opt for opt in opt out optable optant

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step trench