godsend：天赐之物。
A godsend for those who missed the live session
synonym：代名词 后面跟for 同义词byword
A synonym for innovation
Passport; 通行证 同义词ticket key
The passport to a better life/success/prosperity
shift: a shift in public
A shift in opinion/strategy/personal finiance focus
The shift from desktop to personal computer
Labor-intensive economy to knowledge-intensive economy
backbone：勇气毅力 支柱
enough backbone to take this challenge
