Bursalogy
粘液囊论[学]
🗣️ 情景例句
Your buildings are very large, aren't they?
你们的厂房很大，对吗？
What is this?
这是什么？
The Y.H.A., Mum.The Youth Hostels Association.
“青招协”，妈妈。青年招待所协会。