方框1:and是并列词,该并列词的后面紧接着是由at引导的介词短语,为右并列项,因此左并列项应该同为at引导的介词短语at developing more framers。 括号4:看到in,说明是介词短语,该介词短语到名词food结束。 标记结束后,主干已经非常清晰了,即The Department has program...
递进关系: also, apart from, besides, moreover, furthermore 时间先后: now, later, before, after, since, when, first, second, next, at last, eventually, finally 排列次序: ano...
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