Message in Chinese (Simplified) (中文(简体))
每个 <var>Y</var> 只允许有一个 <var>X</var>。
Unlocalized message
Only one <var>X</var> is allowed per <var>Y</var>.
Search by Google每个 <var>Y</var> 只允许有一个 <var>X</var>。
Only one <var>X</var> is allowed per <var>Y</var>.
Search by Google