杂项代码并不标识事件，而是用于标记非标准事件的信息。

Miscellaneous codes do not identify events but are used to flag nonstandard event information.

youdao

杂项代码并不标识事件，而是用于标记非标准事件的信息。

Miscellaneous codes do not identify events but are used to flag nonstandard event information.

youdao