Pick it Up, Mate!

Just take care of the pence and the pounds will take care of themselves - my motto to learn English. This blog helps me to review and learn English usage in connection with current Aussie affairs.

New feature: Double click the word to look it up in dictionary online

Friday, December 01, 2006

convex mirror

convex mirror 凸鏡
convex lens 凸透鏡

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