老师您好,求助老师关于“逗号+with”的句子问题。
Despite this characteristic, the most common drawback for any PD controller, with unknown dynamics or even with unmodeled dynamics is the error signal differentiation.
句中为什么用逗号和with将主语和谓语隔开?这是什么语法结构?
实际上,这个句子还缺少一个逗号,改为:
Despite this characteristic, the most common drawback for any PD controller, with unknown dynamics or even with unmodeled dynamics, is the error signal differentiation.
with 短语前后都要加逗号,一个是不行的。这样可以凸显主语和谓语(主系表):the most common drawback is the error signal differentiation.
这样,整个划线的 with 短语作 drawback 的非限制性定语,表示“原因”。
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