This instance doesn't have any special constructors, operations, attributes, or references, so these calls aren't required.

因为本实例没有任何特殊的构造函数、操作、属性或引用，所以不需要这些调用。

youdao

Notice that the client is not required to have any X.509 certificate, but may need to have a PKI environment in order to validate the server's X.509 certificate.

注意，客户机不需要具有任何X . 509证书，但是可能需要具有PK I环境，以确认服务器的X . 509证书。

youdao

You'll also have to provide any mapping files required for your POJOs.

您还需提供POJO所需的所有映射文件。

youdao

The majority of Chinese investments in the United States have either been approved or have not required any approval at all.

FORBES: First Solar, Now China Wind Power In Washington's Crosshairs

None is required to have any investment experience, although I understand one does at this time.

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Virender Sehwag, who probably needed to be still there at tea if India were to have any hope of getting the required runs, lasted just nine balls.

BBC: Indian batsmen defy Australians