to speak; to say; a theory (usually in compounds such as 日心说 heliocentric theory)[cedict]
我
wǒㄨㄛˇ
I; me; my[cedict]
上
shàngㄕㄤˋ
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]
这
zhèㄓㄜˋ
this; these; (commonly pronounced zhei4 before a classifier, esp. in Beijing)[cedict]