sac是什么意思

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...

sac的音标：sac的英式发音音标为：[sæk]sac的美式发音音标为：[sæk]...

sac的复数形式为：sacs...

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...

Bullies pick on younger children.坏孩子专挑年纪更小的孩子欺负。Standing up to bullies takes plenty of backbone.勇敢地对付暴徒需有大无畏精神.Bullies can make your life hell.恃强欺弱者能让你的日子像活地狱。...

From the looks on their faces, I surmised that they had had an argument.看他们的脸色，我猜想他们之间发生了争执。From his letter I surmised that he was unhappy.我从他的信中推测他并不快乐.He surmised that he had discovered one of the illegal streets.他推测自己...

深深浅浅的各种木槿色、丁香色、熏衣草色和紫色都是流行色。All shades of mauve, lilac, lavender and purple were fashionable.在原生境中，木槿能长到25英尺高。In its natural habitat, the hibiscus will grow up to 25ft.夏威夷最肥美的芒果, 最鲜艳的木槿和最纯种的骏马都在海那卡伊.Hawaii's best ma...

reclaim的近义词有：recover, reclaim, restore, regain。下面这些动词均有"重新获得，重新找到，恢复"的含义：recover：普通用词，含义广，可泛指收回去的物质的或精神的东西，也指无意中找到失物。reclaim：主要指回收或利用废物。restore：指建筑物、工艺品恢复原状，也指健康、能力等的恢复。regain：着重指通过努力使失去的东西复得。...

n.膝瘤...

salaried的音标：salaried的英式发音音标为：['sælərid]salaried的美式发音音标为：['sælərid]...

“千卡”的拼音为：qiān kǎ...

chloroxuron的音标：chloroxuron的英式发音音标为：[klərɒk'sʊərɒn]chloroxuron的美式发音音标为：[klərɒk'sʊərɒn]...

biostrome的音标：biostrome的英式发音音标为：[bi:əʊst'rəʊm]biostrome的美式发音音标为：[bioʊst'roʊm]...

草灭平，豆科威...

Camden的音标：Camden的英式发音音标为：['kæmdən]Camden的美式发音音标为：['kæmdən]...

v.改变( transform的第三人称单数 )，使改变形态，使改变外观（或性质），使改观...

“短语”的拼音为：duǎn yǔ...

"That's the weirdest thing I've ever seen," marveled Carl.卡尔惊叹道：“那是我所见过的最怪异的事情了。”We all marveled at his success.我们对他的成功感到惊奇.Her fellow members marveled at her seemingly infinite energy.她的同事们对她似乎无穷的精力大为惊叹。...