heavy-duty service

例句：

1. 1.The heavy-duty truck can carry a lot of cargo.
   这辆重型卡车能运载很多货物。
2. 2. He has a heavy-duty toolbox in his garage.
   他在车库里有一个重工具箱。
3. 3. This heavy-duty machine is designed for heavy lifting.
   这台重型机器是为重物提升设计的。