Roger. I have infiltrated the HVAC system.

收到 我已经入侵了空调系统。

And they found complaint after complaint about one thing, heating, ventilation and cooling - or HVAC systems.

他们发现了一起又一起关于供暖、通风和制冷(暖通空调系统)的投诉。

It doesn't have any electrical light during the day. No lights, no HVAC system, and barely a utility bill.

白天不会消耗电光源。没有光，没有高压交流电系统，几乎不会收到物业账单。

A 2022 international study published in the Journal of Building Engineering said thousands of American schools have outdated HVAC systems.

2022 年发表在《The Journal of Building Engineering》上的一项国际研究称，数千所美国学校的暖通空调系统已经老化。

The GAO found that an estimated 41% of districts need to update or replace HVAC systems in at least half of their schools.

美国政府问责局发现，估计41%的地区中至少有一半的学校需要更新或更换暖通空调系统。