隐藏: to hide, to conceal, to mask, to shelter, to harbor (i.e. keep sth hidden), to hide oneself, to lie low, to nestle, hidden, implicit, private, covert, recessed (lighting)...
负责人: person in charge...
稍稍: somewhat, a little, slightly...
文明: civilized, civilization, culture...
论文: paper, treatise, thesis, to discuss a paper or thesis (old)...
风和日丽: moderate wind, beautiful sun (idiom); fine sunny weather, esp. in springtime...
沉: to submerge, to immerse, to sink, to keep down, to lower, to drop, deep, profound, heavy...
惊讶: amazed, astonished, to surprise, amazing, astonishment, awe...
备用: reserve, spare, alternate, backup...
想念: to miss, to remember with longing, to long to see again...