The variational rage of indoor temperature and humidity is smaller than outdoor, and it also has positive relativity with the size of dooryard peristome.
相对室外而言，室内温湿度变化幅度更小，并且与天井的开口大小显示出明显的正相关性。
词源
1
peristome:
From peri- +? Ancient Greek στ?μα ?(stóma, “mouth”)