奥陶系

ào táo xì

Definitions

1. Ordovician system (geology)

Stop forgetting what you study.
Build recall daily.

Try HanyuGuide's Chinese review system with multiple choice, typed recall, tone-aware practice, and reviews scheduled before memory fades.

Start Free Trial · $49.99 / year

Sign up with Google

Continue with Email

Lifetime for $119.99 Try a practice session

Child Words of 奥陶系

to connect

to tie

obscure

pottery