哇，窗口太小啦
请调整浏览器窗口大小或者请使用手机查看！
S1 E17
Knock Knock
The Sound Collector is puzzled when he hears a strange knocking noise - where could it be coming from?
请调整浏览器窗口大小或者请使用手机查看！
The Sound Collector is puzzled when he hears a strange knocking noise - where could it be coming from?
