to speak; to say; a theory (usually in compounds such as 日心说 heliocentric theory)[cedict]
他们
tā menㄊㄚ ㄇㄣ˙
they[cedict]
为什么
wèi shén meㄨㄟˋ ㄕㄣˊ ㄇㄜ˙
why?; for what reason?[cedict]
要
yāoㄧㄠ
yàoㄧㄠˋ
demand; ask; request; coerce[cedict]
important; vital; to want; to be going to; must[cedict]
旗
qíㄑㄧˊ
banner; flag; (in Qing times) refers to Manchurian ruling class, from 八旗 eight banners; administrative subdivision in inner Mongolia equivalent to 縣|县 county[cedict]
呢
neㄋㄜ˙
níㄋㄧˊ
(question particle for subjects already mentioned)[cedict]