所以没有拦截系统调用，而是转而拦截实际参与的函数调用。

So instead of the system calls, we intercept the function calls that actually get made.

youdao

实际参与的规模和次数都非常明显的超过前三个时期。

The scope and number of actual participation surpassed those from the past three periods.

youdao

实际参与-让每个人都参与其中-写白板，记笔记，走动，动起来！

Physical participation - Make everyone physically participate - write on a white board, take notes, walk, move!

youdao