diàn huà yě yǒu yǐn sī biān jiè, bù shì shēng yīn néng fàng dà jiù kě yǐ suí biàn fàng

电话也有隐私边界，不是声音能放大就可以随便放。

Phone calls also have privacy boundaries; just because you can amplify the sound doesn't mean you can play it freely.