短语词组短語powdery y scab of potato 馬鈴薯粉狀瘡痂病powdery scab of potatoes 馬鈴薯粉痂病powdery scab of potato 馬鈴薯粉狀瘡痂病potato powdery scab 馬鈴薯粉痂病 返回 powdery scab