Bletilla hyacinthina (mucilaginous) / Acronym for the Chinese Elder tree 菫草
四谛
sì dì
the Four Noble Truths (Budd.), covered by the acronym 苦集滅道|苦集灭道[ku3 ji2 mie4 dao4]: all life is suffering 苦[ku3], the cause of suffering is desire 集[ji2], emancipation comes only by eliminating passions 滅|灭[mie4], the way 道[dao4] to emancipation is the Eight-fold Noble Way 八正道[ba1 zheng4 dao4]
Acronym裁军外交研究所
Acronymcái jūn wài jiāo yán jiū suǒ
The Acronym Institute for Disarmament Diplomacy
喜大普奔
xǐ dà pǔ bēn
(of news etc) so thrilling that everyone is rejoicing and spreading the word (Internet slang) / acronym from 喜聞樂見|喜闻乐见[xi3 wen2 le4 jian4], 大快人心[da4 kuai4 ren2 xin1], 普天同慶|普天同庆[pu3 tian1 tong2 qing4] and 奔走相告[ben1 zou3 xiang1 gao4]