Themegaphone(microphone)makesthevoicesoundlouderbecauseitpointssoundwavesinonedirectionandkeepsthemfromspreadingoutinalldirections.
With lasers scientists can probe many physical processes, such as combustion, once beyond our ken.视野
In literature, caricatures讽刺画 usually contain verbal exaggeration through which the writer achieves comic and often satiric 讽刺effects.
Thefearofsmallpox,whichterrorizedtheeighteenthcentury,hasnoanalogy(likeness)today.
MaryMcCarthyssatires讽刺文学arecouchedinaprosestylethathasaclassicprecision.