单词：polymer stabilizer
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Once A Regional Stabilizer, Saudi Arabia Becomes A Disrupter MARY LOUISE KELLY, HOST: For generations, Saudi Arabia's monarchs have based their rule on tradition and caution and, above all, stability. Crown Prince Mohammed bin Salman represents a bre
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1975 、 双圆头锤 blockinghammer 1976 、 双极面结型晶体管 bipolarjunctiontransistor 1977 、 双线规；榫规 mortisegauge 1978 、 双头砂轮机 double-endedgrinder 1979 、 双头螺栓
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VOA标准英语2016年(二月)