While doing this is trivial for normal parameters, it is very hard to make that guarantee with a closure.

对于普通的参数来说，这样做没有什么必要，它也很难通过闭包来确保可用性。

youdao

They can also introspect into a closure just like a normal function can.

它们还可以像普通函数一样内省到闭包中。

youdao

The valve has the two control loops for normal regulation and emergency closure respectively.

此阀有两个控制回路，分别用于正常调节和紧急关闭。

youdao

The New York Stock Exchange is planning on a normal trading session, after its first two-day closure due to weather since 1888.

FORBES: Wall Street Gets Back To Business As Sandy Recovery Begins

Failures are rare but they do happen: Hong Kong's futures clearing-house ran out of resources in 1987, for example, and it took a government bail-out and the closure of the main stockmarket for things to get back to normal.

ECONOMIST: The risk in clearing-houses