dumb-bell slot

例句：

1. 1.This machine has a dumb-bell slot for attaching weights.
   这台机器有一个哑铃槽用来挂重物。
2. 2.The gym has a dumb-bell slot where you can store your weights.
   健身房有一个哑铃槽，你可以在这里存放你的哑铃。
3. 3.When lifting heavy weights, it's important to use the dumb-bell slot correctly.
   在举重时，正确地使用哑铃槽很重要。