(A)hinder 阻礙/妨礙(B)loosen 鬆散/鬆開/使…放鬆(C)ripen 成熟/時機成熟/條件成熟(D)widen變寬/加寬/放寬/變多/變大wildfire 野火backfire 產生適得其反的結果/產生反效果/發生逆火
42 When fighting a wildfire, firefighter..-阿摩線上測驗