sac怎么读

The chalazal megaspore of a linear tetrad develops into a polygonum type sac.四分体线行排列,合点端的大孢子发育为蓼型胚囊.The heart sounds are muffled when the pericardial sac is distended with fluid.当心包充满液体时心音减弱.With embryo sac haustoriumcha...

sac的复数形式为：sacs...

n.（动植物组织中的）囊，液囊abbr.缩写 = (US) Strategic Air Command 战略空军司令部。...

Amniocentesis is the removal of fluid from the amniotic sac.羊膜穿刺术是从羊膜囊抽取羊水的技术.The heart sounds are muffled when the pericardial sac is distended with fluid.当心包充满液体时心音减弱.Starch grains present in the embryo sac and placent...

strike out的音标：strike out的英式发音音标为：[straik aut]strike out的美式发音音标为：[straɪk aʊt]...

pun的第三人称单数（三单）为：puns...

实际上，切肉刀也是斧子的一种。In fact, a cleaver is a class of ax.她用切肉刀切掉了它们的尾巴.Who cut off their tails with a carving knife.拿起切肉刀,砍断他们的手.Take out a meat cleaver and cut off their hand....

greengage的复数形式为：greengages...

He picked up the calipers and gauged carefully.他拿起卡钳仔细测量.His mood can be gauged by his reaction to the most trivial of incidents.从他对鸡毛蒜皮的小事的反应就可以判断出他的情绪。He gauged the wind at over thirty knots.他测出风速在30节以上。...

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n.省油器...

kowtow的一般过去时为：kowtowed...

“烫”的英语可以翻译为：urn，scald，heat up in hot water，warm（物体温度高） very hot，scalding ...

The writers often put their results in ciphers or anagrams.写信人常常把成果写成密码或者搞成字谜.So many ciphers today we could crack - we know how to crack them.现在有这么许多的密码我们都可以破译,我们知道怎么破译....converting their messages into ciphers.把他们的信息转换...

有关恒星如何从呈弥漫状态的星云凝缩而来,天文学家们争论了很多年.One camp maintains that turbulence within the clouds plays a dominant role.云是由水蒸汽凝缩而成的.A cloud is a condensation of water vapour.染色质甲基化后会出现凝缩.Methylation of chromatin causes it to condense...

geese的音标：geese的英式发音音标为：[gi:s]geese的美式发音音标为：[ɡis]...

anhematopoiesis的音标：anhematopoiesis的英式发音音标为：['ænhmætəʊpəʊɪi:sɪs]anhematopoiesis的美式发音音标为：['ænhmætoʊpoʊɪisɪs]...

“邪”的拼音为：xié...

Dave and Michelle invited me to go out with them but I don't want to play gooseberry all evening.戴夫和米歇尔邀请我跟他们一起出去,不过我可不想整个晚上都当电灯泡.cape gooseberry灯笼果dwarf cape gooseberry醋栗Chinese gooseberry弥猴桃...gooseberry fool.奶油醋栗...