teel oil

例句：

1. 1. The ancient Chinese used teal oil to waterproof their boats.
   古代中国人使用桐油来防水他们的船。
2. 2. The painter applied teal oil to the canvas before painting.
   画家在绘画前将桐油涂在画布上。
3. 3. The old house was repainted with teal oil to preserve its beauty.
   为了保持房子的美丽，老房子被重新刷上了桐油。