小声: in a low voice, (speak) in whispers...
掌握: to grasp (often fig.), to control, to seize (initiative, opportunity, destiny), to master, to know well, to understand sth well and know how to use it, fluency...
祭祀: to offer sacrifices to the gods or ancestors...
传媒: media...
标准: (an official) standard, norm, criterion...
杯子: cup, glass...
泡沫: foam, (soap) bubble, (economic) bubble...
树木: tree...
悠久: long (tradition, history etc)...
末日: last day, end, final days, doomsday...
