Used about fats and oils, `unsaturated` marks the kind that mostly comes from plants and fish rather than from land animals — olive oil, peanut oil, avocado, nuts, salmon. These fats are usually liquid at room temperature, and doctors generally treat them as the better ones for your heart. Saturated fats, the other kind, come mostly from meat, butter and coconut, and are usually solid when cold.

Used about fats and oils用在脂肪和油上的時候 `unsaturated` marks the kind that mostly comes from plants and fish'unsaturated'指的是主要來自植物和魚類的那種 rather than from land animals而不是來自陸生動物 olive oil, peanut oil, avocado, nuts, salmon像橄欖油、花生油、酪梨、堅果、鮭魚 These fats are usually liquid at room temperature這類脂肪在室溫下通常是液體 and doctors generally treat them as the better ones for your heart醫生通常認為它們對心臟比較好 Saturated fats, the other kind另一種是飽和脂肪 come mostly from meat, butter and coconut主要來自肉類、奶油和椰子 and are usually solid when cold冷的時候通常是固體

The word comes out of chemistry, where 'saturated' means every space is already filled — a saturated fat molecule holds all the hydrogen it possibly can. Unsaturated means there is a gap, a place where the chain is not full. You do not need the chemistry to use the word, but it explains why the same word turns up on a nutrition label, in a science class, and in talk about soaking things in liquid.

The word comes out of chemistry這個字來自化學 where 'saturated' means every space is already filled在化學裡'saturated'的意思是每個空位都已經填滿 a saturated fat molecule holds all the hydrogen it possibly can一個飽和脂肪分子已經抓住它能抓住的所有氫原子 Unsaturated means there is a gap unsaturated的意思是還有空位 a place where the chain is not full也就是這條鏈上有個位置還沒填滿 You do not need the chemistry to use the word你不需要懂化學也能用這個字 but it explains why the same word turns up on a nutrition label, in a science class, and in talk about soaking things in liquid但這解釋了為什麼同一個字會出現在營養標示、科學課還有講東西泡在液體裡的時候

On food packaging you will meet the family: unsaturated, monounsaturated (one gap), polyunsaturated (many gaps). Taiwanese labels translate these directly, so once you match the English to the Chinese you will recognise them everywhere.

On food packaging you will meet the family在食品包裝上你會遇到這一整個家族 unsaturated, monounsaturated (one gap), polyunsaturated (many gaps) unsaturated、monounsaturated（一個空位）、polyunsaturated（很多空位） Taiwanese labels translate these directly台灣的標示是直接翻譯這些字 so once you match the English to the Chinese you will recognise them everywhere所以只要把英文和中文對上你到處都認得出來

A gentle honesty note: 'unsaturated = healthy' is the standard advice, and it is roughly right, but nutrition science keeps arguing about the details. Say 'usually considered better for you' rather than treating it as settled fact.

A gentle honesty note誠實地提醒一下 'unsaturated = healthy' is the standard advice'unsaturated＝健康'是標準的說法 and it is roughly right大致上是對的 but nutrition science keeps arguing about the details但營養科學在細節上一直有爭論 Say 'usually considered better for you'比較好的說法是「通常被認為對你比較好」 rather than treating it as settled fact而不是把它當成已經定論的事實