N - hydroxyethylpyrrolidone ( NHP ) was synthesized from � � - butyrolactone and ethanolamine on Y molecular sieve catalyst by two steps.以改性Y分子筛为催化剂,γ-丁内酯和乙醇胺为原料,采用γ - 丁内酯法两步合成N - 羟乙基吡咯烷酮 ( NHP )....

redistribute的现在进行时为：redistributing...

Bertha likes to catch butterflies with her little paws.柏莎喜欢用她那小小的熊掌去抓蝴蝶.We catch butterflies, we pick flowers, and we pick wild fruit to eat.有时候,我们会森林捉蝴蝶 、 摘花 、 摘野果吃....

布托哌林...

v.（与…）邻接( abut的过去式和过去分词 )，（与…）毗连，接触，倚靠...

all but的音标：all but的英式发音音标为：[ɔ:l bʌt]all but的美式发音音标为：[ɔl bʌt]...

cannot help but的音标：cannot help but的英式发音音标为：['kænɔt help bʌt]cannot help but的美式发音音标为：['kænɑt hɛlp bʌt]...

酪糜...

The song is a tribute to Roy Orbison.那首歌是对罗伊·奥比森的致敬。The award was a fitting tribute to her years of devoted work.这个奖项是对她多年全心全意工作的恰如其分的褒奖。At her funeral her oldest friend paid tribute to her life and work.在葬礼上，她最早的朋友对她的一生...

There is still pain at bottom vertebra of the buttock!屁股处的尾椎骨还在一阵阵的痛!Is long afterbirth above the buttock how one and the same?屁股上面长胞是怎么一回事?In my thigh and buttock ( touches his right buttock ).在我的大腿和屁股....

button的现在进行时为：buttoning...

abut的第三人称单数（三单）为：abuts...

vt.& vi.贡献出，捐赠（款项），投稿（给杂志等），出力...

butanedial的音标：butanedial的英式发音音标为：[bju:'teɪni:dɪəl]butanedial的美式发音音标为：[bju'teɪnidɪrl]...

butt的现在完成时为：butted...

adj.东西容易从手中滑掉的，不小心的...

异丁二硫吡咯素...

make a tribute to的音标：make a tribute to的英式发音音标为：[meik ə 'tribju:t tu:]make a tribute to的美式发音音标为：[mek e 'trɪbjut tu]...

abut的一般过去时为：abutted...

n.捕虫堇...

butterfly的现在完成时为：butterflied...

buttons的音标：...

buttonwood的音标：buttonwood的英式发音音标为：['bʌtnwʊd]buttonwood的美式发音音标为：['bʌtnwʊd]...

氨苯丁酯...

contribute的一般过去时为：contributed...

vt.屠宰（butcher的过去式与过去分词形式）...

二甲噻丁...

The cuts on Colin's head could only have been made by head-butts.科林头上的那些伤口只能是用头撞击时造成的。The Nazis worked them over with gun butts.纳粹分子用枪托毒打他们.She says the patrolmen rounded them up at the village school and beat them ...

adj.奶油的，含奶油的，油性大的...

buttock的现在进行时为：buttocking...