on; on top; upon; first (of two parts); previous or last (week etc); upper; higher; above; previous; to climb; to go into; above; to go up; to attend (class or university); third tone of putonghua[cedict]
与
yúㄩˊ
yǔㄩˇ
yùㄩˋ
(same as 歟|欤, final particle expression doubt or surprise, similar to 吗 or 呢)[cedict]
and; to give; together with[cedict]
take part in[cedict]
主流
zhǔ liúㄓㄨˇ ㄌㄧㄡˊ
main stream (of a river); fig. the essential point; main viewpoint of a matter[cedict]