cyclopentene什么意思

cyclopentene的音标：cyclopentene的英式发音音标为：[saɪkləʊ'penti:n]cyclopentene的美式发音音标为：[saɪkloʊ'pentin]...

In low temperature, reaction of ketone with sodium acetylide synthesized 1 - ethynyl - 2,3, 4,5 - tetramethyl - 2 - cyclopentene - 1 - ol; 1,2 - diphenyl - 2 - hydroxy - 3 - butine - 1 - one; 3,4 - diphenyl - 1,5 - hexad...

crossbones的音标：crossbones的英式发音音标为：['krɒsbəʊnz]crossbones的美式发音音标为：['krɔsboʊnz]...

unexpectedly的音标：unexpectedly的英式发音音标为：[ˌʌnɪk'spektɪdlɪ]unexpectedly的美式发音音标为：[ˌʌnɪk'spɛktɪdlɪ]...

hake的音标：hake的英式发音音标为：[heɪk]hake的美式发音音标为：[heɪk]...

n.浮标，救生圈，航标vt.使浮起，支持，鼓励...

disharmonious的音标：disharmonious的英式发音音标为：[ˌdɪshɑ:'məʊnɪəs]disharmonious的美式发音音标为：[ˌdɪshɑ'moʊnɪrs]...

I like your name for great great grandpa Rex: Grandpa Giant!我喜欢你为好好爷爷雷克斯起的名字: 巨人爷爷.My great - grandpa left this necklace to me.这条项链是我的 曾祖父 留下来的.You keep this photo and send me a photo of Great Great Grandpa Rex.您收着这张照片,送...

“停顿”的拼音为：tíng dùn ...

n.满屋，一屋子( houseful的名词复数 )...

hemoporphyrin的音标：hemoporphyrin的英式发音音标为：[hi:mə'pɔ:fɪrɪn]hemoporphyrin的美式发音音标为：[himə'pɔfɪrɪn]...

n.废话，空话( palaver的名词复数 )v.废话，空话( palaver的第三人称单数 )...

n.德里克（男子名）...

lowermost的音标：lowermost的英式发音音标为：['ləʊəˌməʊst]lowermost的美式发音音标为：['loʊrˌmoʊst]...

n.体力劳动者，工人，（熟练工人的）辅助工...

They plotted to make the whole Mississippi Valley secede from the United States.他们阴谋策划使整个密西西比流域脱离美国。We won’t allow Tibet to secede from China and become an independent nation.我们决不允许西藏脱离中国独立。But the southerners have lost ...

grand的比较级为：grander...