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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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China's national observatory renewed its orange alert for cold wave- the second highest level - on Sunday evening. Sun jun, chief forecaster of the National Meteorological Center, says the strong cold front is linked with the activity of the polar vo

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When a prospective employer makes unreasonable demands on you before things start to get serious, it's a strong signal to hit the road. 当一位未来雇主在工作还没正式之前就提出了无理要求，那么明显说明你需要跑路了。