Idiom-24-Puzzling or inexplicable

Center for Language Education and Cooperation

Idiom-25-Keep pace with the times

Center for Language Education and Cooperation

Idiom-26-How can this be reasonable

Center for Language Education and Cooperation

Four Great Inventions: Gunpowder

Center for Language Education and Cooperation

Four Great Inventions: Papermaking

Center for Language Education and Cooperation

The magnificent Badaling Great Wall

Center for Language Education and Cooperation

Four Great Inventions: Printing

Center for Language Education and Cooperation

Idiom-21-Varied cadence or rhythm

Center for Language Education and Cooperation

Idiom-22-Bully or intimidate others with arrogance

Center for Language Education and Cooperation

Idiom-23-Accepted through common practice

Center for Language Education and Cooperation

Idiom-18-When the water subsides, the rocks emerge

Center for Language Education and Cooperation

Idiom-19-Seas change into mulberry fields and mulberry fields into seas

Center for Language Education and Cooperation