zhè / ge / mó / nǐ / fàng / dà / qì / kě / yǐ / bǎ / wéi / ruò / de / shēng / yīn / xìn / hào / fàng / dà这个模拟放大器可以把微弱的声音信号放大。This analog amplifier can amplify weak audio signals.