bitumen mastic

例句：

1. 1. Theroad was covered in bitumen whenit rained.
   下雨时，这条路上铺满了沥青。
2. 2. Theconstruction crew used bitumen to waterproof the concreteslabs.
   施工队用沥青来防水混凝土板。
3. 3. The oil company isusing bitumen to coat the pipelines for better efficiency.
   这家石油公司正在使用沥青来给管道涂层，以提高效率。
4. 1. The chef usesmastic to bind the meat together duringcooking.
   厨师在烹饪时使用鱼胶来使肉粘合在一起。
5. 2. Themastic is a traditionalingredient in many Middle Eastern desserts.
   鱼胶是许多中东甜品的传统成分。
6. 3. The mastic is also usedas a flavoring agent in some bakedgoods.
   鱼胶也被用作某些烘焙食品的调味剂。