He has been calling at people's homes, saying he's come to check that all their appliances are safe.

他一直在拜访人们的家，并称自己是来检查他们所有的电器是否安全。

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He is been calling at people's homes, saying he's come to check that all their appliances are safe.

他一直在拜访人们的家，并称其是来检查他们所有的电器是否安全。

youdao

More than half of all residential power goes into running household appliances, producing a fifth of the world's carbon emissions.

超过一半的居民用电用于运行家用电器，并产生了全球五分之一的碳排放。

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This platform requires all appliances in the home to be networked together.

BBC: EU smart-home concept shown off

The company also demonstrated a home energy-management system that would connect all appliances in the house, potentially over the internet, to show homeowners where they're wasting energy and how they could save money by being more efficient.

CNN: When refrigerators tweet and washing machines text

Whirlpool says only a tiny minority of washer owners have actually complained about foul smells (although one internal survey put the level with all appliances, including dishwashers, at above 30%), and the company made a number of design changes over the years to address the problem.

FORBES: Manufacturers Hope SCOTUS Takes Up The Case Of The Smelly Washer