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golden rule
☊
khuôn vàng thước ngọc
☊
Golden Rule
☊
goldene Regel
☊
< 11.15 Grundsatz
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golden rule ☊ 
khuôn vàng thước ngọc ☊ Golden Rule ☊ 
goldene Regel ☊ < 11.15 Grundsatz