Socializing was already stratified by our various postal codes; now friendship groups self-edited even further.

社交活动已经被我们不同邮编分成了不同等级；现在发生了改。

Histologically, it’s a pretty complex tumor with lots of prominent features including multiple cysts filled with a thick “motor-oil”-looking fluid; and cells that stratify, or arrange themselves in layers.

组织，颅咽管瘤是许多明显特征混合肿瘤，包括充满浓稠“汽油”样液体多发囊肿以及细胞分层（呈层状分布）。