Each call generated on the client must contain an action argument so that the server knows what to do.

客户机上生成的各调用必须包含一个action参数，以使服务器了解执行怎样的活动。

youdao

Each call generated on the client must contain an action argument so that the server knows what to do.

客户机上生成的各调用必须包含一个action参数，以使服务器了解执行怎样的活动。

youdao