Apterygidae什么意思？

Apterygidae的音标：...

hypernic的音标：hypernic的英式发音音标为：['haɪpənɪk]hypernic的美式发音音标为：['haɪpənɪk]...

T-shirts are a nice little earner and it's better than the dole.卖T恤衫来钱容易，比领救济金好。Two years later he is flat broke and on the dole.两年后，他一贫如洗，靠失业救济金生活。I got out my wallet and began to dole out the money.我掏出钱包开始发钱。...

finite的音标：finite的英式发音音标为：['faɪnaɪt]finite的美式发音音标为：['faɪˌnaɪt]...

crooner的复数形式为：crooners...

v.重新开始( resume的过去式和过去分词 )，重新获得，重新占用，恢复...

气温突降.The temperature suddenly dropped.图表上的曲线突降之后逐渐趋于平稳.The graph flattens out gradually after a steep fall.在这次气温突降时节,要保证孩子们穿得暖和.Be sure the children are wrapped up in this sudden cold weather....

生物砂屑石灰岩，生物碎屑灰岩...

n.企鹅( penguin的名词复数 )...

fledge的第三人称单数（三单）为：fledges...

她眼圈发黑，眼窝深陷。Her eyes were sunken and black-ringed.她的眼睛深陷在眼窝里。Her eyes were sunk deep into their sockets.他的眼窝发黑.There were dark circles beneath his eyes....

Those workers discuss the evidence for and against several models for microbody biogenesis in rat liver.这些研究者讨论赞成和反对鼠肝微体生物发生的几种模式的证据....

vi.遵从，依从，顺从，应允，同意...

n.退潮( ebb的名词复数 )，落潮，衰退v.（指潮水）退( ebb的第三人称单数 )，落，减少，衰落...

“下部”的拼音为：xià bù...

环烯烃共聚物的自然形态,类似玻璃.COC transparency similar to glass in its natural form.典型环烯烃共聚物材料,比高密度聚乙烯和聚丙烯模量较高.Typical COC material will have a higher modulus than HDPE and PP.报道了在低温条件下, 以邻二酮和α-环烯酮为原料与炔钠反应,合成了2,3, 4,5-四甲基-1-乙炔基-2-烯-环...