[乾坤] 李威
我最近physical chemistry 遇到大問題
有機實驗萃取技術也不好
silica gel怎麼跑都會跑歪
TLC片怎麼點都會脫尾
所以幫我開一門家教課吧
啥時候你們家裡人都會在呢?
我要去你家拜訪拜訪XD
ps : with hengtsai
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