during the time between two events or between the present time and a future event 在这期间；与此同时 The government waits for an economic miracle while, in the meantime, whole industries collapse. 政府等待经济奇迹的出现，与此同时所有的产业都已垮掉。
Synonyms and related words
From now or from a particular time: since, meanwhile, henceforth...