he是主语,realized是谓语
right away是副词短语作状语
that 引导的从句作宾语(宾语从句)
something是不定代词,wrong是形容词,形容词修饰不定代词时要后置,所以是something wrong
在there was something wrong中,是there be句型,be 是系动词,something wrong做表语.
翻译:他马上意识到出了什么问题.
类似的句子:
Is there anything wrong with the car?车有什么问题吗?
There's nothing special.没什么大不了/没有特别的