contemporaneous

1. ADJ If two events or situations are contemporaneous, they happen or exist during the same period of time. 同時(shí)期的[正式]

...the contemporaneous development of a separate and recognizable American school of art. …一所受到認(rèn)可的獨(dú)立美國(guó)藝術(shù)學(xué)院在同時(shí)期的發(fā)展。