榆树: elm屯: difficult; hard榆树: elm◇榆树枯萎病 dutch elm disease刘树屯: liu shutun杏树屯: xingshutun大榆树: dayushu古榆树: guyushu老榆树: tie a yellow ribbon round the old oak tree双榆树: shuangyushu小榆树: xiaoyushu榆树堡: yushupu榆树沟: yushugou榆树街: elm street榆树皮: elm bark榆树市: yushu, jilin榆树台: yushutai榆树湾: yushuwan榆树叶: leaf of elm tree赤榆树脂: ulmin大榆树堡: dayushupu多榆树的: elmy老榆树之恋: tie a yellow ribbon美国榆树: american elm三棵榆树: sankeyushu榆树花叶簿: elm mosaic virus
