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INTERMEDIATE LEVEL
Content
alum ☊ 
phèn ☊
alum ☊ phèn chua ☊
EVP
aluminum/aluminium
→ → →
WNS: (n.) [aluminium] aluminum, Al, silvery metal
like: alum → →
aluminium window frames ☊ frame ☊
The aluminium body is 12% lighter than if built with steel. ☊ light ☊