The language possesses tow sections: the internal property and the external property.
语言具有内部属性和外部属性两个部分。
Safeguard the safety property of guests staff build the external image of hotel.
维护饭店员工、客人的人身财产安全，维护饭店的对外形象。
External objects do not support the collection type property.
外部对象不支持集合类型属性。
External objects do not support the collection type property.
外部对象不支持集合类型属性。
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