A biochemist is a person whose work is the chemistry of living things. In a university they might watch how a protein folds. In a hospital lab they might run blood tests. In a company they might help design a medicine or check what is in a food.

A biochemistbiochemist is a person whose work is the chemistry of living things是研究生物體化學反應的人 In a university在大學裡 they might watch how a protein folds他們可能在觀察蛋白質怎麼摺疊 In a hospital lab在醫院實驗室裡 they might run blood tests他們可能在做血液檢驗 In a company在公司裡 they might help design a medicine or check what is in a food他們可能協助研發藥物，或檢驗食物裡含有什麼成分。

It is a trained, fairly formal job-word: you would not call a high-school student a biochemist just because they like the class.

It is a trained, fairly formal job-word這是個受過訓練、相當正式的職業用詞 you would not call a high-school student a biochemist不會叫一個高中生 biochemist just because they like the class只因為他喜歡這門課。

Though actually, real job titles are messy. The same person might be called a chemist, a molecular biologist, or a lab scientist depending on the building they work in. Biochemist is the clear word when the work is specifically life-chemistry, not chemistry in general and not biology with the chemistry left out.

Though actually不過實際上 real job titles are messy真正的職稱是很混亂的 The same person might be called a chemist, a molecular biologist, or a lab scientist同一個人可能被叫做 chemist、molecular biologist，或 lab scientist depending on the building they work in全看他在哪一棟大樓裡工作 when the work is specifically life-chemistry當這份工作specifically是生命化學 not chemistry in general不是泛泛的化學 and not biology with the chemistry left out也不是把化學抽掉的生物學 Biochemist is the clear word這時候 biochemist 就是最清楚的說法。