老外 is foreigner

这俩个问题太难了。。

二十为廿，三十为卅，四十为卅

Thanks for your kindness,l'm.so glad to join in

Sorry

Hello~you are so nice to claim that you wanna be a teacher.l'm not sure if my english is pretty good.But l wanna chat with u in english and japanese

Add me plz~

Thanks for your courage:),l'll try my best on it

Hmm..maybe most of chinese students have been trained to practice English writing,listening,reading for a long long time.But in the end ,when we meet  foreigner guys like you ,we cannor open our mouth and communicate with you fluently.So, we ask for oral English practice