中间是一个小圆池，池里有金鱼，四周有扇贝壳边。
In the middle was a small round pond containing gold-fish and surrounded by a cockle-shell border.
在我家有四个金鱼等。
鱼缸周围贴上了彩色风景明信片，好让金鱼们以为在游历四方。
He pastes picture postcards around the goldfish bowl to make the goldfish think they are going places.
缸周围贴上了彩色风景明信片，好让金鱼们以为在游历四方。
He pasted picture postcard around goldfish bowl to make the goldfish think they were going place.
对四个金鱼代表品种进行了随机扩增多态dna分析。
Random amplified polymorphic DNA (RAPD) technique were used to investigate genetic variation of four representative varieties of goldfish.
金鱼说：“你们的妈妈肚皮白白的，有着四条腿。
以异源四倍体鲫鲤为父本，二倍体金鱼为母本通过倍间杂交形成三倍体鲫鱼。
The early embryonic development of triploid crucian carp which was generated by mating the males of the allotetraploid hybrids of red crucian carp(Carassius auratus red var.
以异源四倍体鲫鲤为父本，二倍体金鱼为母本通过倍间杂交形成三倍体鲫鱼。
The early embryonic development of triploid crucian carp which was generated by mating the males of the allotetraploid hybrids of red crucian carp(Carassius auratus red var.
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