Then, as the word goes on, more and more units register that some vital piece of information is missing and lose activity.

随着单词的继续，越来越多的单元发觉它们缺失了一些关键信息，随即不再活。

Residents in multi-unit housing settings, like apartments and condominiums, have no protection from a neighbor's secondhand smoke that can drift freely through the windows, walls, and air vents.

居住在公寓和套房这类多单元楼房中的居民并不能保护自己不受邻居二手烟的危害，这些烟气会穿过窗户、墙壁和通风口，四处飘散。