retrace的第三人称单数（三单）为：retraces...

retraces的音标：...

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.intracellular fluid细胞内流质Potent intracellular bactericidal action may be exerted through the myeloperoxidase - hydrogen peroxide - halide bacteric...

vt.折回，折返，回忆，回想，追溯，探源，重描...

intracerebellar的音标：intracerebellar的英式发音音标为：[ɪnt'reɪsrbelə]intracerebellar的美式发音音标为：[ɪnt'reɪsrbelə]...

contraceptive的复数形式为：contraceptives...

trace的现在进行时为：tracing...

免疫避孕...

adj.细胞内的...

traces的音标：traces的英式发音音标为：['treɪsɪs]traces的美式发音音标为：['treɪsɪs]...

retrace的音标：retrace的英式发音音标为：[rɪ'treɪs]retrace的美式发音音标为：[ri'tres]...

trace的近义词有：pursue, follow, chase, hunt, trace, track, trail。下面这些动词均含"跟随，追踪"的含义：pursue：指坚持不懈、毫不动摇地紧跟、追赶某人、某物或某个事业。follow：普遍用词，含义最广，多指跟随起引导作用的人或物，跟随的动机可以是善意的，也可能是恶意的。 chase：指快速追赶或决心追踪，褒义贬义均可用。hunt：原义为"追猎、猎取"，现用于指追捕或搜寻逃犯等。t...

traced的音标：...

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...

isodensitracer的音标：isodensitracer的英式发音音标为：[aɪsɒ'densɪtreɪsər]isodensitracer的美式发音音标为：[aɪsɒ'densɪtreɪsər]...

We continuously inject a tracer into a point in a steadily moving fluid.我们连续地将一种示踪物注入某稳定运动流体中之一点.When ~ ( 238 ) Pu is used as a tracer, its recovery is 77±10 %, with activity being 0.29 dpm.当使用~ ( 238 ) Pu作示踪剂, 强度在0.29dp...

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.踪迹( trace的名词复数 )，[电子学]示踪，挽绳v.描绘( trace的第三人称单数 )，追溯，发现，跟踪...

contraception的音标：contraception的英式发音音标为：[ˌkɒntrə'sepʃn]contraception的美式发音音标为：[ˌkɑntrə'sepʃn]...

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...

traceable的音标：traceable的英式发音音标为：['treɪsəbl]traceable的美式发音音标为：['treɪsəbl]...

等密度描绘仪...

小脑内的...

Celastraceae的音标：...

footrace的音标：footrace的英式发音音标为：['fʊtreɪs]footrace的美式发音音标为：['fʊtˌreɪs]...

n.避孕，节育...

Oral contraceptives are readily available.口服避孕药容易得到....oral contraceptives...口服避孕药Continuous Oral Contraceptives: Are Bleeding Patterns Dependent on the Hormones Given?连续口服避孕药: 出血模式是否依赖于服用的激素?Some barrier contraceptives ...

n.步行竞赛，赛跑...

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]...

melitracen的音标：melitracen的英式发音音标为：[məlɪt'reɪsn]melitracen的美式发音音标为：[məlɪt'reɪsn]...