购买旧房子前，请让专业人士检查一下电线线路。

Before buying an old house, have a professional inspect the ___electrical wiring.

不要在一个电源插座上连接太多电器。

Don't overload a single ___electrical outlet with too many appliances.

这家商店提供各式各样的进口电器产品。

This store offers a wide variety of imported ___electrical goods.