Eyespots, the most rudimentary eyes, are found in protozoan原生動物 flagellates 鞭毛蟲 , flatworms 扁形蟲 , and segmented worms片段 蠕蟲 .
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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.
People who do not sleep enough tend to become irritable .
In literature, caricatures諷刺畫 usually contain verbal exaggeration through which the writer achieves comic and often satiric 諷刺effects.
InthenortheasternUnitedStates,itrainsintermittently間歇地throughoutthespring.
Some sea urchins海膽 have venomous (toxin) spines
