unreactive造句
Elementalnitrogenisaveryunreactiveandinertmaterial.SothediscoveryoftheunreactivemonatomicgasargonbyLordRayleighandWilliamRamsayin1895cameasatotalsurprise....
Elementalnitrogenisaveryunreactiveandinertmaterial.SothediscoveryoftheunreactivemonatomicgasargonbyLordRayleighandWilliamRamsayin1895cameasatotalsurprise....