... 大量采集 mass collection 块状群落mass colony 巨流;集流 mass flow ...
双语例句
1
And I had no idea that Dafen's artist colony - the world's leading center for mass-produced artwork and knockoffs of masterpieces - had been devastated by the bursting of the U.S. housing bubble.
Objective To build the colony immune defence and to control the periodic epidemics of hepatitis A after a mass vaccination of live attenuated hepatitis A vaccine.