Students specialize in a particular type of practical joke: the hoax.学生们擅长于一种特殊形式的恶作剧 -- 设置骗局.This is a practical joke.这是恶作剧.I'm sure the whole thing is just some practical joke.我可以肯定这全部事件都是在开玩笑....

hack的音标：hack的英式发音音标为：[hæk]hack的美式发音音标为：[hæk]...

abbacy的音标：abbacy的英式发音音标为：['æbəsɪ]abbacy的美式发音音标为：['æbəsɪ]...

A pH test measures the acidity or alkalinity of a substance.pH值测试可检测物质的酸碱度。Add honey to counterbalance the acidity.加点蜂蜜来调和酸味。This plant prefers alkaline soil, though it will readily tolerate some acidity.这种植物在酸性土壤中也能生存, ...

delactation的音标：delactation的英式发音音标为：[delæk'teɪʃən]delactation的美式发音音标为：[delæk'teɪʃən]...

piracy的复数形式为：piracies...

acknowledgement的反义词有：denial。n.acknowledgement的反义词（承认;自认）：denial。...

massacre的音标：massacre的英式发音音标为：['mæsəkə(r)]massacre的美式发音音标为：['mæsəkɚ]...

n.异种菌苗...

Her tone and her look still enveloped her in a soft inaccessibility.她的语调和神态依旧把她禁锢在一种不可接近的状态中....

Polar bears, desert gazelles and sharks were all added to the list of species facing extinction.北极熊 、 漠瞪羚和鲨鱼都已经被列入濒临灭绝的物种.The country is facing great economic difficulties.该国正面临巨大的经济困难。...a woman facing serious responsib...

adj.无缘水母部的...

interact的第三人称单数（三单）为：interacts...

氨基乙缩醛...

adj.精确的，准确的，正确无误的...

back and forth的音标：back and forth的英式发音音标为：[bæk ænd fɔ:θ]back and forth的美式发音音标为：[bæk ənd fɔrθ]...

The accident at the factory underlines the need of better safety standards.工厂里发生的事故表明了需要更高的安全标准.The method gives ways to evaluate collision speed in traffic accident reconstructions.该模型为交通事故再现推算碰撞速度提供了有效实用的方法.He was badl...

n.（加固书脊的）背衬料...

n.激烈的竞争，你死我活的竞争...

...

The result is a subtractive number.结果是复数。Complementary to the three additive light primaries, there are three subtractive primaries.与加色法三原色互为补色的颜色为减色法三原色.See Additive primary colours, Subtractive primary colours.参阅加色法原色,...

deface的现在完成时为：defaced...

impeach的第三人称单数（三单）为：impeaches...

It is difficult to praise this immaculately researched work too highly.这项研究工作毫无瑕疵，怎样称赞都不过分。As always he was immaculately dressed.跟往常一样，他穿得干净而整洁。The orchestra plays immaculately.管弦乐队的演奏完美无瑕。...

factor的复数形式为：factors...

acrobat的复数形式为：acrobats...

n.细胞活性...

spectacles的音标：spectacles的英式发音音标为：['spektəklz]spectacles的美式发音音标为：['spektəkəlz]...

replace的现在进行时为：replacing...

Off to one side, Sticht, Macomber, Jordan, and Kreps huddled to discuss something.施蒂希特、麦康伯、乔丹和克雷普斯走到一旁私下商量着什么。Macomber saw the lion now. He was standing almost broadside, his great head and toward them.麦康勃看见狮子了. 它几乎侧面站着,...