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- primary anal opening [医] 原肛口
- The list includes spina bifida, heart defects, missing limbs, and "malformation of the anal opening. 他们还有可能是死于酗酒或吸毒人数的三倍。
- Mammals can be divided into the large intestine and rectum colon, rectum directly to anal opening in vitro (cloaca disappear), mammals and amphibians, reptiles, birds of the significant differences. 哺乳动物的大肠可分为结肠与直肠，直肠直接以肛门开口于体外（泄殖腔消失），是哺乳类与两栖类、爬行类、鸟类的显著区别。
- The disease is still in its primary stage. 这疾病仍然在初发阶段。
- exterilium A detached and trailing gut with many cirri and the anal opening on the dorsal edge found in larvae of some species, possibly of Brotulidae (Fraser and Smith, 1974). 捲曳肠一个分离而延伸的多触须消化道，且在背部边缘上有肛门开口，发现于仔鱼与一些鱼种，可能是须鳚科。(菲沙河与史密斯,1974
- The little boy left primary school at eleven. 这个小男孩十一岁时小学毕业。
- Sure. We are friends since primary school. 当然，我们从小学就是朋友了。
- I started primary school when I was 5 years old. 我五岁时开始读小学。
- A primary cause of Tom's failure is his laziness. 懒惰是汤姆失败的主要原因之一。
- Primary school teachers use a lot of visual aids. 小学教师使用大量的视觉教具。
- Love and hatred are primary emotions. 爱和恨是基本的情感。
- The Democratic primary was held this month. 民主党候选人初选於本月举行。
- Today is the open day in the primary school. 今天是小学的参观日。
- secondary anal opening [医] 次级肛口
- Primary education comes under the umbrella of local government. 小学教育受地方政府的保护。
- He only accepted the primary education off and on in his childhood. 他小时候只断断续续地接受过初等教育。
- anal opening 肛门
- The primary reason for advertising is to sell more goods. 做广告的根本目的是要多出售货物。
- Primary anal syphilis 肛门初期梅毒
- Collins was nosed out by his opponent in the primary. 柯林斯在初选中就被他的对手击败了。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
