drip-proof type

例句：

1. 1. The new car has a drip-proof type engine that won't let any water in.
   这款新车有一个滴水不漏型的发动机，不会让任何水进入。
2. 2. The waterproof type of phone case is perfect for outdoor activities.
   这种防水型手机壳非常适合户外活动。
3. 3.The leak-proof type of sealant prevents water from getting in.
   这种防漏型密封剂可以防止水分进入。