sticky oil

例句：

1. 1. The car's engine is running smoothly, but thesticky oil can make it difficult to start.
   汽车的引擎运行顺畅，但粘稠的油会使启动变得困难。
2. 2. The painter useda brush to apply the sticky oilto the canvas.
   画家用刷子将粘性油涂抹在画布上。
3. 3. Themechanic replaced the sticky oil filter in thecar's engine.
   机械师更换了汽车引擎中的粘性油过滤器。