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英语
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I am a retired Aerospace Engineer. I speak English and German. I took the 5 week course in Korean from Yonsei University, which gives me a rudimentary knowledge of Korean. I teach ESL twice a week, I study playing guitar, I am a Ham radio operator, I work to help people.

英语
西班牙语
泰语
中文 (普通话)
日语
朝鲜语