最有趣的是四大发明之一——活字印刷。

The most interesting is one of the four great inventions - print.

youdao

答：印刷和活字印刷术肯定是这类发明中的两个。

Yates: Printing and movable type were certainly two of them.

youdao

答：印刷和活字印刷术肯定是这类发明中的两个。

Yates: Printing and movable type were certainly two of them.

youdao