148國家與組織參展　料吸2,000萬遊客　米蘭世博開幕　兩成專館未完工

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html5: MEDIA_ELEMENT_ERROR: Format error

spaceplay / pause

qunload | stop

ffullscreen

shift + ←→slower / faster (latest Chrome and Safari)

↑↓volume

mmute

←→seek

 . seek to previous

12…6 seek to 10%, 20%, …60%