optional的音标

adj.可选择的，随意的，任意的，非强制的，选修科目...

We also recommend a full day optional excursion to the Upper Douro.我们还推荐去杜罗河上游的短途自选一日游。The course consists of ten core modules and five optional modules.这门课程包括十个必修单元和五个选修单元。Certain courses are compulsory, others are opti...

optional的反义词有：compulsory, required, compulsory。adj.optional的反义词（随意的;选修的）：compulsory。optional的反义词（其他释义）：required, compulsory。...

Optional extras include cooking tuition at a top restaurant...可选的额外项目包括在顶级餐厅学习厨艺。The goods are optional, but only one.这些物品是可以任选的, 但只能选一个。Elevation view of a tapered key with optional gib head.具有可选钩头的锥形键的正视图.The third col...

optional的近义词/同义词有：voluntary, elective, voluntary, elective。adj.optional的近义词（自愿的,志愿的）：voluntary, elective。optional的近义词（其他释义）：voluntary, elective。...

心脏活动...

“证据”的近义词/同义词：表明, 证实, 说明, 证明, 凭据, 凭证, 左证, 凭单, 字据。...

Their holiday was ruined by a whole series of misadventures.一连串的不幸事故把他们的假日全毁了.As she attempts to follow the rabbit, she has several misadventures.当她试图遵循兔子, 她有几个倒霉.By 1972, a series of misadventures landed the band in Lon...

“老化”的拼音为：lǎo huà...

adj.两栖的，水陆两用的，两栖作战的，具有双重性的...

adj.等弹性的...

n.微流星体...

“华盛顿”的英语可以翻译为：[法]First American Bankshares，[法]Riggs National Corporation，[法]Washington ...

“外包皮”的英语可以翻译为：[医]exoperidium ...

His pleasant, somewhat ordinary face suggested amiability rather than astuteness.他那讨人喜欢而近乎平庸的脸显得和蔼有余而机敏不足.Young Singaporeans seem to lack the astuteness and dynamism that they possess.本地的一般年轻人似乎就缺少了那份机灵和朝气.Hitting the ri...

cable的现在完成时为：cabled...

“除外”的英语可以翻译为：except，but，besides，apart from，exception ...

换句话说, 雌性更愿意选择那些让它们授精的雄性.Females, in other words, would rather choose which males inseminate them....

incident的近义词有：accident, incident, event, occurrence, happening。下面这些名词均有"事故，事件"的含义：accident ：强调偶然或意外发生的不幸事情。incident ：既可指小事件或附带事件，又可指政治上具有影响的事件或事变。event ：可指任何大小事件，但尤指历史上的重大事件。occurrence和happening这两个词多指日常生活中发生的一般事件，有时也指偶然发...

The newspaper job had me doing the same thing day after day.这份报社的工作让我日复一日地做着同样的事。The newspaper used the neologism "dinks", Double Income No Kids.报纸使用了新词“丁克族”，即“双收入无子女”。I think he was born to be editor of a tabloid newspa...