荒唐: beyond belief, preposterous, absurd, intemperate, dissipated...
祖父: father's father, paternal grandfather...
对比: to contrast, contrast, ratio...
官吏: bureaucrat, official...
签名: to sign (one's name with a pen etc), to autograph, signature...
天然气: natural gas...
监狱: prison...
写字楼: office building...
逮: (coll.) to catch, to seize...
过去 (n.): past; old; foretime...
