| 单词 | 在空气中传播 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔SPEED〕Sound travels through the air at about 340 metres per second. 声音以大约每秒340米的速度在空气中传播。朗文写作活用〔better〕Sound travels better in water than in air.声音在水中比在空气中传播得快。牛津高阶〔carry〕In the winter air, sounds carry clearly.冬天，声音在空气中传播起来很清晰。朗文当代〔sound〕Sound travels through the air at a speed of about 344 meters a second.声音大约以每秒344公尺的速度，在空气中传播。文馨英汉 |
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