Message in Chinese (Simplified) (中文(简体))
“<var>X</var>”类型必须派生自 <var>Y</var> 才能在 <var>Z</var> 集合中使用。
Unlocalized message
The '<var>X</var>' type must derive from <var>Y</var> to be used in the <var>Z</var> collection.
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