我们雇了一位电工来安装新的照明设备。

We hired an ___electrician to install new lighting fixtures.

我们叫了一位电工来修理办公室的电路问题。

We called an ___electrician to fix the electrical problem in our office.

电工必须有适当的培训，才能安全地操作高压设备。

An ___electrician must have proper training to work safely with high voltage equipment.