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        1. (每日一詞)derivative


          Derivative /d??r?v?t?v/ n. 衍生物, 衍生品; 金融衍生產品

          Meaning: a form of something, such as a word, made or developed from another form 衍生物, 衍生品

          meaning: a financial product such as an option  (=the right to buy or sell something in the future) that has a value based on the value of a mother product, such as shares or bonds 金融衍生產品

          1) 前綴: de- 向下

          2) 詞根: riv-表示river 河流

          3) 后綴:-ative 可做名詞后綴(-ate + ive 合成 detective) 

          【基礎英語】Fire away 沒有火
          【基礎英語】will do 這個用法你知道嗎?
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          【原聲視界】Day 235:How does raising interest rates control inflation| The Economist