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n.弹性橡皮，生橡胶，天然橡胶； 英英释义： caoutchouc[ 'kautʃuk ]n.an elastic material obtained from the latex sap of trees (especially trees of the genera Hevea and Ficus) that can be vulcanized and finished into a variety of products同义词：rubbernatural rubberIndia rubbergum
