主流

❶main stream;main current
❷general(or main)trend;essential or main aspect
和平、合作、发展已成为当今时代的～。Peace,cooperation and development are the general trend of our times./分清～和支流distinguish the principal and secondary aspects/长江的～和支流mainstream and tributaries of the Yangtze River/共和党～派mainstream Republican/～派mainstream