乃至: and even, to go so far as to...
附件: enclosure, attachment (email), appendix...
和睦: peaceful relations, harmonious...
屁股: buttocks, bottom, butt, back part...
隐情: sth one wishes to keep secret, ulterior motive, a subject best avoided...
板块: slab, (geology) tectonic plate, sector (of the stock market or of industry), (economic) bloc...
