BDabbr.神学学士(=bachelor of divinity)abbr.银行汇票(=bank draft)bdt(=basophil degranulation test) 嗜碱细胞脱粒试验,(=beckmann differential thermometer) 贝克曼(氏)差示温度计

1. Take a lineage of microscopic marine animals known as bdelloid rotifers.Most rotifers reproduce sexually, but bdelloid rotifers abandoned sex about 100 million years ago.
   就拿海洋中的微小动物蛭形轮虫来说，大部份轮虫行有性生殖，但是蛭形轮虫已经把性丢开约一亿年了。