新聞英語/請幫聽一個字

 http://www.cbc.ca/player/News/Business/ID/2293761508/

It can cost a lot of money to keep those (  )clean and healthy , but all those dental procedures  really necessary? Marketplace investigates how cleaning our teeth can also clean our wallets

 http://www.cbc.ca/player/News/Technology+and+Science/ID/2288940879/

talk a good game

To make a good, concise speech.

所有跟帖： 

• pearly whites? -祤湫霖- ♀ (0 bytes) () 10/19/2012 postreply 20:41:39

• 回複：pearly whites? -sportwoman- ♀ (685 bytes) () 10/19/2012 postreply 21:43:04

• 謝分享，過謙了，周末好。 -祤湫霖- ♀ (0 bytes) () 10/20/2012 postreply 09:14:01