metacarpi的音标：metacarpi的英式发音音标为：[metə'kɑ:pɪ]metacarpi的美式发音音标为：[metə'kɑpɪ]...

adj.不能调换的，不能代替的...

space shuttle的音标：space shuttle的英式发音音标为：[speis 'ʃʌtl]space shuttle的美式发音音标为：[spes 'ʃʌtl]...

the expansion and contraction of the metal金属的膨胀与收缩Contraction of the timbers left gaps in the fence.木料收缩,结果围墙露出缝来.The forces of expansion are balanced by forces of contraction.扩张力和收缩力相互平衡....

n.乙酰二乙基溴化乙酰脲，阿巴辛（一种镇静剂）...

氨草胶，氨脂...

Tractors and container lorries have completely obstructed the road.拖拉机和集装箱货车已经将这条路完全堵死了。Nowadays tractors are used even in remote mountainous regions.现在连偏僻的山区也用上了拖拉机.All the tractors except this are good in quality.除了这台拖...

...when the aircraft's wheels were retracted.当飞机的轮子收起来的时候The eyes are often retracted from dehydration.眼睛常因脱水而凹陷.He made a false confession which he later retracted.他作了假供词，后来又翻供。Now the flaps were fully retracted.现在...

In the past he dallied with actresses and lady novelists.他过去曾与许多女演员和女小说家调情。Film is a business with limited opportunities for actresses.电影行业对女演员来说机会有限。None of the actresses we have auditioned is suitable.我们试听的这些女演员都不合适....

backdate的一般过去时为：backdated...

Jacelin sacrificed his life to save the child from the fire.杰斯林牺牲自己的生命把孩子从火中救了出来。The ancient Greeks sacrificed lambs or calves before engaging in battle.古希腊人在打仗前用羊和小牛作祭品.She sacrificed family life to her career...她为事业舍弃了...

ambulacra的音标：ambulacra的英式发音音标为：[æmbjʊ'leɪkrə]ambulacra的美式发音音标为：[æmbjʊ'leɪkrə]...

vt.承认，鸣谢，对…打招呼，告知已收到...

There were also other factors that entered into the orchestration.管弦乐编曲还要考虑其他因素。Undoubtedly, political and economic factors have played their part.毫无疑问，政治和经济因素在其中起了作用。The consensus is that risk factors have an accumu-lat...

臂扭转，臂弯扭...

brace的现在完成时为：braced...

He had reached the pinnacle of his military career.他已经到达了军事生涯的顶峰。Twenty-five years ago, to the day, England reached the sport's pinnacle by winning the World Cup.恰好是在 25 年前的今天，英格兰队在世界杯上夺冠，到达了足球运动的巅峰。John Major has r...

hypergalactosis的音标：hypergalactosis的英式发音音标为：[haɪpəɡəlæk'təʊsɪs]hypergalactosis的美式发音音标为：[haɪpəɡəlæk'toʊsɪs]...

Jacobs was a stout, florid man.雅各布斯身材结实，脸色红润。Eleanor and I drank a toast to Miss Jacobs.我和埃莉诺向雅各布斯小姐敬酒。Suddenly he realised that Jacobs was addressing him.突然他发觉雅各布斯在对他说话....

克拉科夫矩阵...

vaccinates的音标：...

leach的音标：leach的英式发音音标为：[li:tʃ]leach的美式发音音标为：[litʃ]...

teaching的音标：teaching的英式发音音标为：['ti:tʃɪŋ]teaching的美式发音音标为：['titʃɪŋ]...

Alismaceae的音标：...

n.灯火管制（期）( blackout的名词复数 )，（广播等）停止，断电，新闻封锁...

n.丙烯醛...

blacknose的音标：blacknose的英式发音音标为：[blæk'nəʊz]blacknose的美式发音音标为：[blæk'noʊz]...

n.背后照明vt.从背后照亮...

drawback的音标：drawback的英式发音音标为：['drɔ:bæk]drawback的美式发音音标为：['drɔˌbæk]...

Using particle accelerators, scientists are now hunting for the Higgs.科学家正试著利用加速器来寻找希格斯粒子.The product possess the best scorching quality of sulfonamide type accelerators.本品具有次磺酰胺类促进剂最好的防焦烧性能.Particle accelerators and det...