Early astronomers thought that our planet was the centre of the universe.早期的天文学家认为我们的星球是宇宙的中心。Space scientists and astronomers have taken another step forwards.航天科学家和天文学家又取得了进展。Astronomers used to ask why only Saturn has...

You can pleat palm fronds to make huts, umbrellas and baskets.人们可以把棕榈叶折叠起来盖棚屋, 制伞,编篮子.When these breezes reached the platform the palm - fronds would whisper.微风吹到平台时,棕榈叶片发出簌簌的低吟.Why did gorgeous usurer nurture these fron...

chronologize的音标：chronologize的英式发音音标为：[krə'nɒlədʒaɪz]chronologize的美式发音音标为：[krə'nɒlədʒaɪz]...

n.干扰素...

environ的第三人称单数（三单）为：environs...

frontispiece的复数形式为：frontispieces...

astrochronology的音标：astrochronology的英式发音音标为：[æstrəʊkrə'nɒlədʒɪ]astrochronology的美式发音音标为：[æstroʊkrə'nɒlədʒɪ]...

Bronka is somewhat infamous for his screeching electric guitar work.布朗卡因为弹出刺耳的电吉他声而有些让人讨厌。Glen Bronka wrote his own orchestral arrangements.格伦·布朗卡把自己的曲子改编成了管弦乐曲。They loathe Bronka Ginsberg but aren't about to cross ...

asynchronous的音标：asynchronous的英式发音音标为：[eɪ'sɪŋkrənəs]asynchronous的美式发音音标为：[e'sɪŋkrənəs]...

n.蕨类或棕榈类植物的叶子...

electroneurolysis的音标：electroneurolysis的英式发音音标为：[elektrəʊnjʊə'rɒlɪsɪs]electroneurolysis的美式发音音标为：[elektroʊnjʊr'rɒlɪsɪs]...

n.中队，骑兵中队，飞行中队，有组织的一个群体vt.把…编成中队...

The brontosaurus was one of the largest of all dinosaurs.雷龙是所有恐龙中最大的一种.A two foot - long drill bit tipped the end of a brontosaurus - like creature's long neck.一枚两英尺长的钻头在一头 状 似雷龙的大家伙的长颈一端咬了一口....

anhydrone的音标：anhydrone的英式发音音标为：[ænhaɪd'rəʊn]anhydrone的美式发音音标为：[ænhaɪd'roʊn]...

n.熊狸...

n.丁腈...

Naked aggression and an attempt to change frontiers by force could not go unchallenged.公然的侵略和企图用武力改变边界的行径是不能置之不理的。Researchers are pushing back the frontiers and opening doors to reveal why things happen and how things wo...

keramovitrons的音标：keramovitrons的英式发音音标为：[kerə'mɒvɪtrɒnz]keramovitrons的美式发音音标为：[kerə'mɒvɪtrɒnz]...

cast iron的音标：cast iron的英式发音音标为：[kɑ:st 'aiən]cast iron的美式发音音标为：[kæst 'aɪən]...

febetron的音标：febetron的英式发音音标为：['febətrɒn]febetron的美式发音音标为：['febətrɒn]...

脂肪微粒...

hexatetrahedron的音标：hexatetrahedron的英式发音音标为：[heksætetrə'hedrən]hexatetrahedron的美式发音音标为：[heksætetrə'hedrən]...

Ronan的音标：...

铁...

n.二氢孕酮...

dichloronitroethane的音标：dichloronitroethane的英式发音音标为：[daɪklərəni:trə'ʊeθən]dichloronitroethane的美式发音音标为：[daɪklərənitrə'ʊeθən]...

n.烫衣工，烫衣机...

n.边界( frontier的名词复数 )，边境，开发地区的边缘，尚待开发的领域...

The six astronauts on board will spend ten days in space.飞船上的6名宇航员将在太空度过10天。Astronauts work in weightless conditions.宇航员在失重的条件下工作。The astronauts work and live in the space capsule.宇航员在航天舱里工作生活....

The bank manager has ironed out all my worries about money.银行经理消除了我对钱款的忧虑.When the shirts were clean, I ironed them myself, aired them and placed them in drawers in his room.衬衫洗干净之后，我自己将它们熨好、烘干并放在他房间的抽屉里。The fabric was i...