其结构是固定的,意思上的主语并不是句子的主语。
generally speaking:一般说来
talking of (speaking of) :说道
strictly speaking:严格的说
judging from:从…判断
all things considered:从整体来看
taking all things into consideration:全面看来
例如:
Judging from his face, he must be ill.
从他的脸色看,他一定是病了。
Generally speaking, dogs can run faster than pigs.
总的来说,狗比猪跑得快。(speaking 并不是dogs 的动作)