Escape key: a computer keyboard key that is used to exit a mode or routine, or cancel some function.

换能键：电脑键盘上用来走出一个模式或例行程序或取消一些功能的键。

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Several ambulance services across Britain are still only answering emergency calls and many hospitals continue to cancel routine operations.

BBC: NHS will take days to recover

Keith Lewis, from St Day, criticised PCH's decision to cancel routine clinics.

BBC: Feet showing superimposed computer image of bones