Online Class Notes (Nemo)

Vocabulary

To charge/recharge the battery

first generation

ado (n): a lot of activity, worry, or excitement that is unnecessary or greater than the situation deserves:
In the end, it all seemed like much ado about nothing.
Without much ado, it became the most widely-used system in the world.
Most state flags were adopted with little ado many years ago.

cut out(v): (STOP WORKING)
If an engine, machine, or piece of equipment cuts out, it suddenly stops working.
（发动机、机器或设备）突然熄火，停止运转
One of the plane’s engines cut out, so they had to land with only one.
飞机的一个引擎突然出了故障，所以他们只好靠一个引擎着陆。

professional equipment-专业设备