They are having a chinese class.中文译作:他们在上汉语课。句中chinese为形容词,意思是:中国的; 中国人的; 中国话的; 中文的;例如:
1. Chinese waiters stood in a cluster, sharing a private joke.
华人服务生们站在一起,讲着只有他们自己才懂的笑话。
2. Her Chinese friends referred to the Empress as their venerable ancestor.
她的中国朋友们说这位女皇是他们值得敬仰的祖先。