His daughter is always shy in public and she never dares to make a speech to the public为什么前面用in public后面用in the public为什么前面不加the后面加

问题描述:

His daughter is always shy in public and she never dares to make a speech to the public
为什么前面用in public后面用in the public为什么前面不加the后面加

in public是固定搭配,表示"在公共场合"
the public是指公众,人群

in public 固定用法:在公共场合
the public 指公众做宾语!

in public: it means the surroundings.
the public: it means the people.

in public大庭广众下
the public大众

in public固定短语表示:在公共场合
the public也是固定用法:表示大众