All living organisms, regardless of their unique identity, have certain biological, chemical, and physical characteristics in common.
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The economy of Dallas, Texas, is strong and diversified .
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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.
In the northeastern United States, it rains intermittently 间歇地 throughout the spring.
Food must be moist in order to have a taste.