methylpyridine什么意思？

methylpyridine的音标：methylpyridine的英式发音音标为：[meθɪlpɪ'raɪdaɪn]methylpyridine的美式发音音标为：[meθɪlpɪ'raɪdaɪn]...

The reaction conditions on oxidation of 2 - methylpyridine to 2 - acid by oxidation of potassium dichromate were studied.研究了以2-甲基吡啶为原料,以重铬酸钾为氧化剂,利用化学氧化法合成 2- 吡啶甲酸的反应条件....

“发放”的拼音为：fā fàng...

原脑皮质...

effloresce的第三人称单数（三单）为：effloresces...

If you smell gas fumes or burning, take the car to your mechanic...如果你闻见汽油冒烟或燃烧的异味，应把车送修。He is an adept mechanic.他是个熟练的机械师。He is a garage mechanic.他是一名加油站技工。An elevator mechanic can work the machinery directly by turning...

The new design only received a lukewarm endorsement from head office.新设计在总部反响平平.We are happy to give the product our full endorsement.我们很高兴给予该产品完全的认可.That adds up to an endorsement of the status quo...那算是对现状的赞同。her endor...

黑板上用粉笔写着7个人名。There was a blackboard with seven names chalked on it.他在黑板上又写了几条注释。He wrote a few more notes on the board.他用一截粉笔将她的指示写在黑板上。With a stick of chalk he wrote her order on a blackboard....

surmount的现在进行时为：surmounting...

Spanish的复数形式为：Spanishes...

“荒谬”的英语可以翻译为：absurd，preposterous，absurdity，absurdness，boloney ...

she的音标：she的英式发音音标为：[ʃi]she的美式发音音标为：[ʃi]...

由于此路窒碍太多, 车行很不方便.As there are too many obstacles along this road, the traffic is very inconvenient....

landscape的现在进行时为：landscaping...

pet的一般过去时为：petted...

adj.生物的，生物学的...

galactofuranose的音标：galactofuranose的英式发音音标为：[gəlæktə'fʊrənəʊs]galactofuranose的美式发音音标为：[gəlæktə'fʊrənoʊs]...