Culture and Discovery

Animals want to be heard

作者：21st

城市噪音改变了蚂蚱的叫声？

词数 344 建议阅读时间 6分钟

教案和课件见网站测试见7版

IN a quiet classroom, you only need to whisper (耳语) for others to hear you. But at a noisy crossroad, you have to speak much louder to be heard over the traffic.

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