Abstract：Before the missionaries came to China in 1830s, only W.C. Hunter of American businessmen had learned Chinese seriously. After 1840, the missionaries Elijah Coleman Brideman and Samuel Wells Williams compiled three dictionaries, signaling that Americans learning Chinese had embarked on a mature and smooth way.
顾钧. 鸦片战争以前来华美国人的汉语学习[J]. 江苏大学学报（社会科学版）, 2012, 14(4): 41-44.
GU Jun. The Americans Learning of Chinese before the Opium War. Journal of Jiangsu University（Social Science Editi, 2012, 14(4): 41-44.
2012, Vol. 14 
