gē dé bā hè cāi xiǎng
the Goldbach conjecture in number theory
哥
gē
elder brother
德
dé
variant of 德[de2]
巴
bā
the east of Sichuan and Chongqing Municipality
赫
hè
awe-inspiring
猜
cāi
to guess
想
xiǎng
to think (about)