summer lubrication

例句：

1. 1.The car's engine needs summer lubrication to keep it running smoothly.
   汽车的发动机需要夏季润滑来保持顺畅运行。
2. 2. During the summer, we need to lubricate the gears to prevent them from getting stuck.
   在夏天，我们需要润滑齿轮以防止它们卡住。
3. 3.The mechanic checked the car's engine and found that it needed summer lubrication.
   机械师检查了汽车的发动机，发现它需要夏季润滑。