马赫先生从抽屉里拿出一条链子，链子一头挂着一串钥匙。
From the drawer Mr Mach took out a chain, with a bunch of keys dangling at its end.
链，带系在表或手镯上以防其丢失的小链子或带子
A small chain or band attached to a watch or bracelet to prevent loss.
狗拴著链子，是怎麽挣脱开的呢？
The dog was chained, so how did it get free?
