optional什么意思解释？

optional的音标：optional的英式发音音标为：['ɒpʃənl]optional的美式发音音标为：['ɑpʃənl]...

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。...

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 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。...

“文风”的拼音为：wén fēng...

All the writers on the panel agreed Quinn's book should be singled out for special praise...专门小组的所有作家一致认为奎因的书应该单独挑出来予以特别表扬。Quinn's connections are strictly A-list.奎因所交往的人都是最有名气的。Quinn headed the collaborationis...

n.低下，卑贱，微弱...

horse的现在完成时为：horsed...

chlorophenylarsine的音标：chlorophenylarsine的英式发音音标为：[klɒrə'fenɪlɑ:si:ni:]chlorophenylarsine的美式发音音标为：[klɒrə'fenɪlɑsini]...

n.马膝湿疹...

adj.饰以珠的，珠状的...

“有花的”的英语可以翻译为：floriferous ...

This sticky liquid empties slowly.这种黏液要好一会儿才能流空。If a man empties his purse into his head, no man can take it away from him.如果倒空钱袋,装入脑袋,那就无人能够把钱夺走。The river Ganges empties itself into the Bay of Bengal.恒河流入孟加拉湾.The Changj...

He was extolled as the founder of their Florentine school.他被称颂为佛罗伦萨画派的鼻祖.To be shaved was a fashion of Florentine respectability.刮脸是佛罗伦萨人体面的流行时式.The Dynamic Architecture concept was introduced by Florentine architect Dav...

She needs the right clothes, and a few attractive mannerisms.她需要合适的衣服, 一些吸引人的风度.He had nervous mannerisms that intensely irritated me.他那些矫揉造作的神经质的姿势让我恼火透了.She describes their homes , their mannerisms, even the way they o...

"I told you Preskel had no idea," remarked Kemp with some asperity.“我告诉过你普雷斯克毫不知情的，”肯普颇为不耐烦地说道。Kemp got out of his car. "Just fill her up, thanks."肯普下了车。“给它加满油，谢谢。”Ted's always been difficult, Mr Kemp — he takes aft...

v.继续存在( last的第三人称单数 )，耐用，幸免于，延续...

He is antipathetic to dogs.他天生就讨厌狗.The whole place and everything about it was antipathetic to her ( Anthony Trollope )整个地方和它所有的事物都令她反感 ( 安东尼特罗洛普 )He is antipathetic ( al ) to dogs.他生来 厌恶 狗.He was antipathetic to any cha...

beclomethasone的音标：beclomethasone的英式发音音标为：[bek'lɒmeθeɪsn]beclomethasone的美式发音音标为：[bek'lɒmeθeɪsn]...