短语讲解:
1. When someone comes to your front door and rings the doorbell, the light can turn on immediately.
turn on 打开(水、电视、收音机、灯、煤气等)
例句:I want to turn on the television
我想开电视。
2. Another use of smart home technology is being able to watch what is taking place in your home – whether you are just around the corner or half way around the world.
be able to 能够; 能,会
例句:They may be able to help with childcare so that you can have a break
他们可以帮忙照料孩子,这样你就可以歇一歇了。