動詞のup

up は一般的に前置詞ですが、動詞でもあります。2:30 two-(1 word), do you want to continue? do you want to up the wager? あと、一本で僕の勝ち。まだやる？掛け金を増やそうか？3:27 do you want to continue? of course, I want to bloody continue. but since we're upping the wager, let's up the weapon, shall we? まだやるの？当たり前だ。掛け金を増したから、得物も真剣でいこうぜ。

Die Another Day - Fencing Scene Part 1 [HD].avi
https://www.youtube.com/watch?v=Y0-CMYkpkUQ  0:07 Beijing is considering upping its participation in the rescue funds aimed at resolving the European debt crisis.
https://www.youtube.com/watch?v=WAXAOBrlI60  0:01 the Britain is upping its military presence in Libya, with more of its Tornado jets.
https://www.youtube.com/watch?v=bwe6QC70AEw  1:19 they are upping food production by about 10 to 20 percent.

練習問題解答
a-1059 up their game 注；up the game は一応イディオムですが、up の意味がわかっていれば、即座に理解できます。
a-5204 up their game
a-8980 upped his pace
a-9094 upped the pressure on her
b-1336 upping their tips