optional
英['ɒpʃ(ə)n(ə)l]
美['ɑpʃənl]
实用场景例句
- Certain courses are compulsory, others are optional.
- 某些课程是必修的，其他是选修的。
牛津词典
- This model comes with a number of optional extras (= things you can choose to have but which you will have to pay extra for) .
- 这一型号有一系列可供选择的附件，价格另计。
牛津词典
- A holiday isn't an optional extra. In this stressful, frantic world it's a must...
- 休假并非可有可无。在这个紧张而忙碌的世界，它是必不可少的。
柯林斯高阶英语词典
- Sex education is a sensitive area for some parents, and thus it should remain optional.
- 性教育对某些家长而言是个敏感领域，因此应该保持其非强制性。
柯林斯高阶英语词典
- Airfield: 4 Firehawks, which is enough to destroy an opposing Tech are optional.
- 机场: 4个火鹰, 这足够您摧毁敌人得高科了,云层推进升级可选.
期刊摘选
- Appends the specified element of List ( optional operation ).
- 在列表尾部添加指定元素 ( 可选操作 ).
期刊摘选
- The appearance of two new optional color effect: soil and grass green bronze.
- 对于外观,有两种新的效果色可选: 土青铜色与草绿色.
期刊摘选
- On lesser amounts, insurance is recommended but optional and taken out at your request.
- 在少许数额, 保险被推荐但任意和被去掉根据您的请求.
期刊摘选
- However, the alt attribute is optional and may be omitted from particular image elements.
- 然而, alt的属性是可选的,甚至是可以忽略的.
期刊摘选
- A general categorization ( optional ). Negative, epithelial cell abnormality, or other ( see interpretation below ).
- 大体分类 ( 可选择项 ). 正常, 或上皮细胞异常, 或其他 ( 参看以下描述 )
期刊摘选
- Constructors have optional extra parameters for the comparison object.
- 构造函数有可选的额外参数用于比较用的函数对象.
期刊摘选
- The optional wind deflector minimizes drafts and wind turbulence, eliminating wind chill and maximising comfort.
- 作为备选设备的挡风板也以有效的防止气流干扰, 消除风冷,优化舒适度.
期刊摘选
- Air pressure type cooling device are optional parts by customers.
- 可依客户需求增设气冷式冷却设备.
期刊摘选
- Black polyester paint; optional in other special paints on request.
- 黑色聚脂漆; 按订货要求可选用其它专门的油漆.
期刊摘选
- The cassette player is an optional extra in this make of car.
- 这种型号汽车如需盒式磁带唱机费用另计.
期刊摘选
- Automatic thread trimmer ( optional ), to increase sewing efficiency and reducing production cost.
- 备有自动 切线 机型, 可增加缝制效率降低成本.
期刊摘选
- There are a range of optional units available depending upon work role and work setting.
- 有一系列的可选单元可根据工作的职责和工作设置而定.
期刊摘选
- In this first form, the comma following the parameter declarations is optional.
- 在第一种形式中, 形参声明后面的逗号是可选的.
期刊摘选
- A variable automatic transmission , Mitsubishi's first , will be optional.
- 同时也有一款无极变速器作为可选配置.
期刊摘选
- Optional argument which specifies what target to build in the subproject.
- 可选参数用来指定子项目将要构建什么目标.
期刊摘选
- Checks authorization for the given operation context and optional message.
- 检查给定操作上下文和可选消息的授权.
期刊摘选
- Solid Stellite 6 wedge ( optional ) ensures low friction and long service life.
- 实心钨铬钴合金6楔板 ( 选项 ) 确保较低的磨损和较长的使用寿命.
期刊摘选
- The goods are optional, but only one.
- 这些物品是可以任选的, 但只能选一个.
《简明英汉词典》
- It is optional with you.
- 那是你的自由.
《现代英汉综合大词典》
- Attendance at the lecture is optional.
- 这一讲座可随意参加.
《现代英汉综合大词典》
- 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。
《牛津高阶英汉双解词典》
- Certain courses are compulsory, others are optional.
- 某些课程是必修的，其他是选修的。
《牛津高阶英汉双解词典》
- A holiday isn't an optional extra. In this stressful, frantic world it's a must.
- 休假并非可有可无。在这个紧张而忙碌的世界，它是必不可少的。
柯林斯例句