gummy residue

例句：

1. 1. The gummy residue on the floor was difficult to clean.
   地板上的胶状残留物很难清洁。
2. 2. The resinous residue from the tree was used in making furniture.
   从树上提取的树脂用于制作家具。
3. 3.The gummy residue left by the bacteria could be harmful to human health.
   细菌留下的胶状残留物对人类健康有害。