https://online2.tingclass.net/lesson/shi0529/0009/9907/927.mp3
https://image.tingclass.net/statics/js/2012
講解文本：
hear a pin drop 聽見針的掉落(形容安靜，通常因?yàn)槌泽@或興奮)
It was so quiet. You could hear a pin drop.
當(dāng)時(shí)安靜極了，連針掉落也聽得見。
There was no one in the house. You could even hear a pin drop.
房子里空無一人，安靜得連針掉落都聽得見。
