You want to be sure they all receive enough emphasis to be clear and convincing.
请问老师,为什么这里有个 to be ?为什么有?它什么成分,作定语吗?
我认为是定语,因为有and convincing,说明 to be clear 和convincing 是一个成分,即都是定语。
哪作定语能不能去掉 to be ?直接 emphasis clear and convincing 这样多么简洁舒服.
to be clear and convincing 应该理解为结果状语。they 指什么需要上下文确定。
请看一个外媒例句:Each main point should focus on a single idea, should be worded clearly, and should receive enough emphasis to be clear and convincing.
这里should的主语应该是each main point.指它通过足够的强调或重视来使其to be clear and convincing.
你的句子,假设they 指rules,arguments等,就应该理解为通过强调来让这些rules 或arguments to be clear and convincing. to be是不能去掉的。enough to do 是英语的习惯用法。
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