单词sac
n.: 气囊
abbr.: 〈美(=Strategic Air Command)战略空军司令部
网络: 中国国家标准化管理委员会(Standardization Administration of China)；上海质量体系审核中心；国家标准委
（人、动植物体内的）囊，液囊，气囊:
a part inside the body of a person, an animal or a plant, that is shaped like a bag, has thin skin around it, and contains liquid or air
Strategic Air Command 〔美国〕战略空军司令部
【生物学】囊,液囊
上衣
凹湾
牺牲品
囊;袋
复数：sacs
n.bagpouchcasepodbladder
"Here"s a species that, of its own accord, has gone down an evolutionary cul-de-sac, " Packham told Radio Times magazine.
帕克汉姆对《RadioTimes》杂志表示：“这是一个本身已走到进化历史尽头的物种。”
A year ago this month, World Trade Organisation negotiators drove into a cul-de-sac.
一年前的这个月，世界贸易组织（WTO）的谈判代表驶入了一个死胡同。
A minute structure in seed plants, containing the embryo sac and surrounded by the nucellus, that develops into a seed after fertilization.
种子植物的一个小的结构，含有胚囊并被珠心所包围，施肥后长成种子。
Please put her in a nice sturdy box with her journal and bag and send her to Sac City State Bank, Attention: Caretaker of Carmen Bear.
请把她和她的不雅光日记放在一个英俊的，结识的盒子里，包装起来，然后寄往Sac市的州际银行。
The air sac can be taken out of the body after the satisfies weight reduction effect is achieved.
待达到满意减肥效果后，可以将其取出体外。
I continue to walk along the walls of this dilapidated, to go about her way, but a strange cul -de-sac beside copied.
我继续沿着这里残破的城墙行走，不愿再走什么便当的途径，而是抄旁边的一条陌生的小路。
A precious sign which, however, led him astray, since it caused him to turn all his researches in the direction of the Cul-de-Sac Genrot.
这一宝贵的破绽却正好把他引上歧途，使他的搜捕工作完全转向让洛死胡同。
Synopsis: Petrie "s moves have all been solid as he goes about rebuilding, but it"s probably going to be another long season in Sac Town.
综述：皮特里的举措围绕重建展开的很好，但是在萨克拉门托恐怕就将是一个悠长的赛季。
On average, he said, one out of every 20, 000 chicken eggs contains a small amount of salmonella that is deposited into the sac by the hen.
每2万个鸡蛋中会有一个鸡蛋带有少量沙门氏菌，这是由母鸡下蛋时分泌在液囊里。
The female stores the sperm until she is ready to lay eggs. She may lay 100 at a time, protecting them in a silken egg sac.
母蜘蛛会贮存这些精液直到它为产卵做好了准备。它可以一次产100枚卵，然后将它们保护在一个丝质卵囊内。