\u0064\u0061\u006E\u0063\u0069\u002E\u0039\u0031\u0031\u0063\u0068\u0061\u002E\u0063\u006F\u006D
1. 不通风的：unveil 揭开 | unventilated 不通风的 | unversed 不精通的
2. 没有通风设备的：unveiling /揭幕的/ | unventilated /没有通风设备的/ | unverifiable /不能证实的/
1. The accident happened in an unventilated room of the restaurant in which several charcoal fires were used for heating.
2. Another problem is infectious diseases, which are caused by unventilated indoor air and an increased number of viruses and bacteria.