He finds it hard to keep pace with the development in physics.He finds that it is hard to keep pace with the development in physics.这两句有什么区别,有没语法错误?

问题描述:

He finds it hard to keep pace with the development in physics.
He finds that it is hard to keep pace with the development in physics.
这两句有什么区别,有没语法错误?

两句都正确,第一句是find的宾补更简洁,第二句是find的宾语从句是个小句子

语法没有错,第一句更简练,常用.
第二句是find的从句,也对.
它们表达的意思一样.