The megaphone(microphone) makes the voice sound louder because it points sound waves in one direction and keeps them from spreading out in all directions.
A、slitheringB
暂无解析
Withtheacquisitionofsmallercompaniesbylargerones,the1960'ssawawaveofnewconglomerates.
Inliterature,caricatures讽刺画usuallycontainverbalexaggerationthroughwhichthewriterachievescomicandoftensatiric讽刺effects.
Someanimalspantandsweattospeedevaporationofbodymoistureandthuscoolthemselves.
Whencarbonisaddedtoironintheproperproportions,theresultissteel.
Thewheelsofthefirstroadvehicleswerefashionedfromcrudestonedisks.
