... condescending » (形) 谦逊的, 叫人领情似的, 故意屈尊的 (动) 谦逊; 屈尊 old bicycle tube » 旧自行车管 Ask please » 请询问 ...
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...We study » 我们研究 old bicycle tube » 旧自行车内胎 When the valve is connected to the pipeline flanges, the hexagonal screws and bolts used in the bore holes must be screw...
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