确保你为这个电器使用正确的三叉插头。

Make sure you use the correct three-prong ___plug for this appliance.

如果插头损坏了，你应该立即更换它。

If a ___plug is damaged, you should replace it immediately.

离开前，请确保每个插头都已关闭并拔下。

Before leaving, please ensure every ___plug is switched off and disconnected.