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by and large总的来说, 大体而言
例句：By and large, women can bear pain better than men.
一般来说, 女人比男人更能忍受痛苦。
2.What I want to know ,and what it is the Congress's duty to determine,is not can our armed forces implement a repeal of this law, but whether the law should be repealed.
What I want to know ,and what it is the Congress's duty to determine是what引导的主语从句。is后面是表语从句。
