Unduplicated
a. 無復制品的,無副本的無法匹敵的, 無法模擬的
??? 情景例句
Shows marked dislike for schoolwork.
明顯討厭功課。
Please sit down and have a glass of juice.
請坐下來喝一杯果汁。
Until we are intelligent as to its laws and varieties,
直到我們理解了風俗的規律性和多樣性，