optional什么意思解释？

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。...

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...

Schools should not mete out physical punishment to children.学校不应该体罚学生.Duly mete out rewards and punishments.有赏有罚.You did not know the measure you were going to mete me.因为您不知道您要用什么量器量给我....

kindly的音标：kindly的英式发音音标为：['kaɪndli]kindly的美式发音音标为：['kaɪndli]...

“推斥”的拼音为：tuī chì...

Normans from South Italy and Spain, nobles and knights, answered the advertisement.来自意大利南部和西班牙的诺曼人, 包括贵族和骑士, 都纷纷响应这个号召.The Romans and the Normans came to Britain as invading armies.罗马人以及诺曼人通过军事入侵来到英国。The Normans conquere...

消瘦症...

n.客人身份，作客之道...

n.木偶，傀儡，受他人操纵的人...

Such measures would be highly impracticable and almost impossible to apply.这样的措施非常不切实际，几乎不可能付诸实施。It would be impracticable for each member to be consulted on every occasion.不可能每一次都征求每个成员的意见。The damage it would cause make...

Love is a word cheapened by overuse.“爱”这个字眼用得太滥不值钱了。She never cheapened herself by lowering her standards.她从不降低标准来贬低自己。The flood of imported cars cheapened the cost of cars made here.大量涌入的进口汽车使本地产的汽车价格下跌....

“主相”的英语可以翻译为：principal phase ...

adv.泰然地，镇静地，平静地...

v.呼出，发散出( exhale的第三人称单数 )，吐出（肺中的空气、烟等），呼气...

sluices的音标：...

almshouse的音标：almshouse的英式发音音标为：['ɑ:mzhaʊs]almshouse的美式发音音标为：['ɑmzˌhaʊs]...

“化身”的英语可以翻译为：incarnation，embodiment，avatar，picture，pink...