词汇	per biennium
释义	per biennium 每两年
随便看	double basson double bassoon double bassoons double bath doublebath dyeing double bath dyeing double-bath dyeing double batten double battery gin double-battery gin double battery switch double battery technique double battle-holes double bazinga double-bazinga double bazingas double-bazingas doublebeam double beam double-beam double beam accelerting syste double-beam amplifier tube double beam anvil double-beam atomic absorption spectrometer double beam atomic absorption spectrophotometer