一般的助听器会放大所有的声音—言语声、背景噪声和钟声等。
Conventional hearing devices amplify everything-from conversations to background noise to the clock ticking.
儿童正在能说或能听懂言语之前，久久就会穿过面部神采和靠雄布噪声来与人相同了。
Long before children are able to speak or understand a language, they communicate through facial expressions and by noises.
儿童正在能说或能听懂言语之前，久久就会穿过面部神采和靠雄布噪声来与人相同了。
Long before children are able to speak or understand a language, they communicate through facial expressions and by noises.
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