表示祝贺;
赞叹他的努力;
期待见面交流。
注意:1)词数100左右;
2)可以适当增加细节,使行文连贯。
I am writing to congratulate you on your getting the first prize in Chinese Bridge Speech Contest. I am so happy for you since I know how enthusiastic you have been for Chinese and how much time and efforts you have devoted to learning it.