Mandarin is a group of Chinese dialects that are considered the official language in many Chinese-speaking communities. The Beijing dialect is considered as standard pronunciation of Mandarin. Thus, when people say the "Chinese language", they implicitly refer to Mandarin.
I've read these sentences in my Rosetta Stone courses: 请洗洗你的袜子 请洗一下楼梯 However, why does the first sentence use two 洗 consecutively before taking the object? Also, how can I tell when to use one ...
(Related a bit to Difference between 实际, 现实, 确实, and 实在 I guess. Good to link to it for posterity.) 的确, 确实, 实在, 真正 My dictionaries all say that all four can be adverbs with a meaning of ...