Allene is an isomer of methyl acetylene.丙二烯是甲基乙炔的一种异构体.Allene oxide synthase ( AOS ) is a key enzyme for JA biosynthesis.丙二烯氧化物合成酶 ( AOS ) 是茉莉酸生物合成的关键酶....

美岛科...

challenge的复数形式为：challenges...

Allen的音标：Allen的英式发音音标为：['ælən]Allen的美式发音音标为：['ælən]...

challenge的第三人称单数（三单）为：challenges...

challenged的音标：challenged的英式发音音标为：['tʃælɪndʒd]challenged的美式发音音标为：['tʃæləndʒd]...

adj.残疾的，有伤的，有缺陷的或缺少的，受到挑战的v.“challenge”的过去式和过去分词...

The secret to happiness is to keep setting yourself new challenges.幸福的秘诀就是要不停地给自己设定新的挑战。Dara challenges our stereotypical ideas about gender and femininity.达拉对我们老一套的性别和女性特质观念提出了异议。Offe also challenges the postulate of an...

challengeable的音标：...

These two features make shadow detection and removal very challengeable.这两个特征使阴影的检测和消除具有相当挑战性.Freelancer is toilsome and enjoyable; it is a challengeable occupation full of more feelings of achievement!自由翻译是辛苦的、也是快乐的; 是具...

The Frenchman held his own against the challenger.这名法国人顶住了挑战者的进攻。the official challenger for the world championship title世界冠军头衔的正式挑战者The judges gave the nod to the winning challenger.裁判们对挑战者的胜利给予确认....

crestfallen的音标：crestfallen的英式发音音标为：['krestfɔ:lən]crestfallen的美式发音音标为：['krɛstˌfɔlən]...

challenges的音标：...

methallenestril的音标：methallenestril的英式发音音标为：[me'tæli:nɪstrəl]methallenestril的美式发音音标为：[me'tælinɪstrəl]...

Allenite的音标：...

He gathered himself up and sneaked off, crushed and crestfallen.他爬起来,偷偷地溜了,一副垂头丧气 、 被斗败的样子.The youth looked exceedingly crestfallen.那青年看上去垂头丧气极了.The individual to whom the manager had been talking went away quite crestfa...

challenging的音标：challenging的英式发音音标为：['tʃælɪndʒɪŋ]challenging的美式发音音标为：['tʃæləndʒɪŋ]...

The move was immediately challenged by two of the republics.此项动议立即遭到其中两个共和国的反对。The men apparently opened fire after they were challenged by a patrol.显然，那些人是在受到一支巡逻队的盘问后开的火。I challenged him on the hypocrisy of his politic...

challenge的音标：challenge的英式发音音标为：['tʃæləndʒ]challenge的美式发音音标为：['tʃæləndʒ]...

n.艾伦（男子名，涵义：英俊，好看的）...

challengers的音标：...

mallenders的音标：mallenders的英式发音音标为：['mæləndəz]mallenders的美式发音音标为：['mæləndəz]...

n.挑战( challenge的名词复数 )，要求，（警卫等）查问口令，怀疑...

allene的音标：allene的英式发音音标为：['æli:n]allene的美式发音音标为：['ælin]...

Online gaming allows players from around the world to challenge each other.网络游戏使得全球的玩家可以相互较量。He said he's game for a similar challenge next year.他说他明年还愿意接受类似的挑战。Increasingly, more wine-makers are taking up the chall...

unchallenged的音标：unchallenged的英式发音音标为：[ʌn'tʃælɪndʒd]unchallenged的美式发音音标为：[ʌn'tʃælɪndʒd]...

Allen, don't you dare go anywhere else, you hear?艾伦，其他地方哪儿都不准去，听到了吗？Men are anxious to improve their circumstances, but are unwilling to improve themselves; they therefore remain bound.--James Allen人们总是渴望改善周遭环境，但是却不...

The bus is said to have over-turned and fallen into a ravine.据说巴士发生翻车，跌进了峡谷。Food production has already fallen behind the population growth.粮食生产已经跟不上人口增长。A couple of inches of dry, powdery snow had fallen.下了数英寸厚的粉状干雪。...

If we had been careful such a calamity would not have befallen us.假如我们谨慎的话,这种灾难不会降临到我们的头上.They supposed that some calamity had befallen the Governor.他们心想这位先生一定遇到了什么无妄之灾.An accident has befallen him.一件不测的事已临到他....

crestfallen的近义词/同义词有：discouraged, dejected, downcast, depressed。adj.crestfallen的近义词（气馁的）：discouraged, dejected, downcast, depressed。...