Feedback of the lecture given in Lorain, Ohio, USA ๐บ๐ธ, written by Lisa ์์ฑ์HAEDONG| ์์ฑ์๊ฐ26.01.20| ์กฐํ์0| ๋๊ธ 0 ๋ณธ๋ฌธ ๋ชฉ๋ก ๋๊ธ ๋ฆฌ์คํธ