In this case S N A F U come from “situation normal, all fu**ed up.”

即，SNAFU="situation normal, all fu**ed up"，（正常的情况全他妈乱了）。

youdao

Dong Lai Shun is an old traditional restaurant n this one is located in Wang Fu Jing Str. So a lot of tourists are ranking have dinner there.

东来顺是北京的老字号了，再加上这家店又在显眼的王府井大街上，所以游客超多。

youdao