发布: to release, to issue, to announce, to distribute...
优化: optimization, to optimize, to make superior...
俯首: to bend one's head...
年夜饭: New Year's Eve family dinner...
周末: weekend...
难看: ugly, unsightly...
杨树: poplar tree, various trees of genus Populus...
隐情: sth one wishes to keep secret, ulterior motive, a subject best avoided...
