challenge的现在进行时为：challenging...

challenges的音标：...

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 home team saw off the challengers by 68 points to 47.主队以68∶7击败前来挑战的客队.Amazon's challengers come from two directions.Amazon挑战来自两个方面.We are the challengers.我们是挑战者....

challenge的一般过去时为：challenged...

n.挑战者，夺标者...

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]...

Many enjoy the mental stimulation of a challenging job.很多人喜欢富有挑战性的工作所带来的强烈的精神刺激。Weber is challenging his audience to question their own beliefs.韦伯正要求观众们反思质疑各自的信仰。Try tennis, badminton or windsurfing. In short, anything c...

challenger的反义词有：defender。n.challenger的反义词（挑战人;异议者）：defender。...

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

马膝湿疹...

n.阵亡者adj.倒下的，（女子）已失身的，落下的，落在地上的v.降低( fall的过去分词 )，来临，成为，降落...

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。...

allenes的音标：allenes的英式发音音标为：['ælənz]allenes的美式发音音标为：['ælənz]...

橄榄二长岩...

adv.刺激地，挑战性地...

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....

...protons and electrons trapped by magnetic forces in the Van Allen belts.范艾伦辐射带的磁力俘获的质子和电子Blade tools: eyebolt turning tool , Allen key, screw tap, milling cutter, drill bits, etc.刀刃工具类: 埃令螺丝(吊环)、圆车刀 、 六角匙 、 丝攻 、 铣刀 、 ...

n.挑战，盘问，质疑，怀疑vt.质疑，向…挑战vi.提出挑战，要求竞赛（或竞争），驳斥...

challenge的现在完成时为：challenged...

They will not allow your more way-out ideas to pass unchallenged.他们不会放过你这些古怪的念头的。His integrity was unchallenged.他的正直是无可争议的。Unchallenged wisdoms flow swiftly among the middle classes.未受质疑的普遍理念在中产阶级中迅速传播开来。...

kentallenite的音标：kentallenite的英式发音音标为：[kentɔ:'lenaɪt]kentallenite的美式发音音标为：[kentɔ'lenaɪt]...

n.挑战者( challenger的名词复数 )...

The youth looked exceedingly crestfallen.那青年看上去垂头丧气极了.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 individual to whom the manager had been talking went away quite crestfa...

异二氢甘遂醇...

adj.倒了的，没落的，坠落的...

Callipallenidae的音标：...

adj.沮丧的...

[法] 应回避的，可拒绝的...