grease swelling

例句：

1. 1. The grease in the pan was causing the oil to swell.
   锅里的油脂导致油开始膨胀。
2. 2. The grease swelling had caused the pan to become sticky.
   油脂膨胀使锅变得黏稠。
3. 3. The doctor advised against using too much grease for cooking.
   医生建议在烹饪时不要使用太多油脂。