Umix
尤密克斯浮選捕收劑
??? 情景例句
He graduated from medical school in 1960
他在一九六零年從醫學院畢業，
Please come in and have a orange.
請進來吃一個桔子。
Is that all? He doesn't say very much,does he?
就這些嗎？他沒寫許多，是嗎？