graceless的音标：graceless的英式发音音标为：['greɪsləs]graceless的美式发音音标为：['ɡreslɪs]...

retrace的第三人称单数（三单）为：retraces...

adj.可耻的，丢脸的，不光彩的，不名誉的，丑，臭...

trace的第三人称单数（三单）为：traces...

n.赛马跑道，赛马场( racecourse的名词复数 )，（赛马、赛车、赛跑的）跑道...

氯乙酰丙氨酸...

He helped me get to know a plant called araceae.经他一说我才知道,原来天南星就是虎尾草呀.A new variety of Acorus of Araceae.天南星科菖蒲属一新变种.Anthurium is most relative to Pothos in Araceae.花烛属在天南星科中与石柑属亲缘关系最近....

vt.& vi.拥抱vt.包括，包含，接受，信奉n.拥抱，怀抱...

All the moves of the ballerina were graceful.那位芭蕾舞演员的所有动作都是很美的。He was charming, cheerful, and graceful under pressure.他在重压之下依然开朗迷人，风度优雅。Aubrey could think of no graceful way to escape Corbet's company.奥布里想不出有什么得体的办法...

n.电气-液压靠模仿型铣床...

Azotobacteraceae的音标：...

You don't need braces if you're wearing a belt!要系腰带,就用不着吊带了.The table is shaky because the braces are loose.这张桌子摇摇晃晃,因为支架全松了.I'd rather wear braces, only the elastic perishes.我倒宁愿系吊裤带, 只不过因为橡皮筋坏得太快.He wore...

Belinuracea的音标：...

embrace的第三人称单数（三单）为：embraces...

The feasibility that the concentration of anthracene can be determined by thermal lens technique.讨论了热透镜技术对紫外光作用下能产生荧光的物质多环芳烃蒽的检测.The derivates of naphthalene, fluorene, pyrene, anthracene, acenaphthene and their applicat...

Bottles and cans were hurled on the terraces by the mob.暴徒向看台扔瓶子和罐子。The people here grow rice on terraces.此地的人们在梯田里种植水稻.Footballers launched an unprecedented crusade against racism on the terraces.足球运动员们对阶梯看台上的种族歧视发起了一场空...

embrace的现在完成时为：embraced...

backtrace的音标：backtrace的英式发音音标为：['bæktreɪs]backtrace的美式发音音标为：['bæktreɪs]...

retrace的一般过去时为：retraced...

Overhead, the lights showed the old timbers, used to brace the roof.灯光照亮了头顶上支撑屋顶的旧房梁。My daughter has to wear a brace on her teeth.我的女儿得戴牙套以矫正牙齿。The doctor cautioned him to brace up.医生告诫他要振奋精神.You had better brace yoursel...

isoanthracene的音标：isoanthracene的英式发音音标为：[aɪ'səʊnθreɪsi:n]isoanthracene的美式发音音标为：[aɪ'soʊnθreɪsin]...

autotrace的音标：autotrace的英式发音音标为：['ɔ:təʊtreɪs]autotrace的美式发音音标为：['ɔtoʊtreɪs]...

graceful的音标：graceful的英式发音音标为：['greɪsfl]graceful的美式发音音标为：['ɡresfəl]...

disgrace的一般过去时为：disgraced...

adj.拉牢的v.支住( brace的过去式和过去分词 )，撑牢，使自己站稳，振作起来...

Horace is so devoted to his garden that he hasn't been away for 10 years.霍勒斯对他的花园太过上心，都有10年没出过远门了。My mother insisted on naming me Horace.我母亲坚持给我取名叫霍勒斯。Sir Willoughby had practised a studied courtness upon Vernon and...

Oral contraceptives are readily available.口服避孕药容易得到.Some barrier contraceptives also help to protect against sexually transmitted infections.有些屏障避孕还有助于预防性传播疾病.Continuous Oral Contraceptives: Are Bleeding Patterns Depende...

adj.蜡状的，蜡质的...

terrace的现在进行时为：terracing...

bracelets的音标：bracelets的英式发音音标为：[b'reɪslɪts]bracelets的美式发音音标为：[b'reɪslɪts]...