彻夜: the whole night...
看不起: to look down upon, to despise...
键: key (on a piano or computer keyboard), button (on a mouse or other device), chemical bond, linchpin...
为何: why...
担忧: to worry, to be concerned...
马后炮: firing after the horse, belated action, giving advice in hindsight...
当代: the present age, the contemporary era...
排放: emission, discharge, exhaust (gas etc)...
形势: circumstances, situation, terrain...
昨天: yesterday...
