0 used to refer to a space used for storing things that is large enough for a person to enter and walk around in -- （存储空间）大得人能走进去的，步入式的
a walk-in wardrobe 步入式衣橱，衣帽间
a walk-in refrigerator 步入式冰箱
1 used to refer to a place that you can go to without having already made an arrangement -- 无需提前预约的
We have also set up walk-in centres: there have been 36 successful bids, covering approximately 10 million people.
As an earlier speaker was saying, the great advantage of the chemist's shop was that it was a walk-in service.
The walk-in health centres sound like a good idea—although they will probably stimulate extra demand, which is a great misfortune.
Some of us believe in secure reception centres while he believes in walk-in, walk-out ones.
No decisions have been made about the number or range of further walk-in centres which might be developed in the future.
Much of modern crime in the metropolis is random and opportunist—for example, auto crime and walk-in crime.
There are walk-in centres, minor injury units, community care centres and proposed diagnostic and treatment centres, all of which have little or no night provision.
The same argument can be used in relation to walk-in clinics.
