验: to examine, to test, to check...
簇拥: to crowd around, to escort...
援助: to help, to support, to aid, aid, assistance...
浮力: buoyancy...
老虎: tiger...
主编: editor in chief...
跳高: high jump (athletics)...
那里: there, that place...
史无前例: unprecedented in history...
讹诈: to extort under false pretenses, to blackmail, to bluff, to defraud...