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中流砥柱 [zhong1 liu2 di3 zhu4]
☊
mainstay ☊
中流砥柱 [zhong1 liu2 di3 zhu4] ☊ 
mainstay ☊ 中流砥柱 [zhong1 liu2 di3 zhu4] ☊ mainstay ☊