racecourses的音标：...

I accepted his challenge to run a race.我接受了和他赛跑的挑战.I run a race the wind. hula, I always run ahead of wind.我和风赛跑. 呼啦, 我总是跑在风的前面....

adj.可追踪的，起源于...

chloracetyl的音标：chloracetyl的英式发音音标为：[k'lɔ:reɪsɪtɪl]chloracetyl的美式发音音标为：[k'lɔreɪsɪtɪl]...

v.折回( retrace的第三人称单数 )，回忆，回顾，追溯...

Grace tapped on the bedroom door and went in.格雷丝轻轻敲了敲卧室的门，走了进去。Grace laid out the knives and forks at the lunch-table.格雷丝把刀叉摆放在午餐桌上。Grace allowed her mind to wander to other things.格雷丝任由自己的思绪游走。...

retrace的第三人称单数（三单）为：retraces...

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...

虫霉科...

The sarcoplasmic reticulum is a system of intracellular membranes.肌浆网属于细胞内膜系统.In order to fuse, intracellular vesicles have to move within the cell.为了融合, 细胞内的囊泡必须在细胞内运动.The reactions may be extracellular or intracellular...

n.赛马会，种( race的名词复数 )，（速度）比赛，（事件等的）进行，人种...

Jockeys are forbidden to bet on the outcome of races.职业赛马骑师禁止对赛马结果下注。Barron invited her to accompany him to the races.巴伦邀请她陪他参加比赛。The College welcomes students of all races, faiths, and nationalities.学院欢迎所有的学生，无论其种族、宗教信仰...

retrace的一般过去时为：retraced...

小脑内的...

Before the race, he is fine. But afterwards he is worn out.赛前他状态很好，赛后就筋疲力尽了。Duke was soundly defeated in this month's Louisiana governor's race.杜克在本月的路易斯安那州长竞选中大败而归。Few jockeys continue race-riding beyond the a...

iodopyracet的音标：iodopyracet的英式发音音标为：[ɪədɒ'paɪrəset]iodopyracet的美式发音音标为：[ɪrdɒ'paɪrəset]...

intracell的音标：intracell的英式发音音标为：[ɪntrə'sel]intracell的美式发音音标为：[ɪntrə'sel]...

n.避孕用具，[药]避孕剂adj.避孕的，避孕用的...

embrace的一般过去时为：embraced...

terrace的一般过去时为：terraced...

棒轮藻科...

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...

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...

trace的现在进行时为：tracing...

trace的现在完成时为：traced...

disgrace的复数形式为：disgraces...

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...

Objective. The extracellular microenvironment directly affects metastatic chordoma cell phenotype in vitro.目的: 细胞外微环境直接影响到体外人转移脊索瘤细胞的表现.The reactions may be extracellular or intracellular.这些反应可以发生在细胞外,也可以发生在细胞内.Extracell...