Word · Frequency #3534
required
必需的;必要的
核心释义
Necessary; obligatory; mandatory.
- 1.
必需的;义务的;强制性的。
Necessary; obligatory; mandatory.
必需的;义务的;强制性的。;必需的
用法In use
Reading the safety manual is required before using the equipment.
用法提示:此句中required作表语,表示“必需的”。
Please bring all required documents to the interview.
用法提示:此句中required作定语,修饰documents,表示“必需的”。
A valid passport is required for international travel.
用法提示:此句中required作表语,表示“必需的”。
be required for sth
A valid ID is required for entry.
进入需要有效身份证件。
be required to do sth
All passengers are required to fasten their seatbelts.
相关词与表达Connections
搭配Collocations
- required course
- 必修课
- This is a required course for all first-year students.这是所有大一学生的必修课。
- required reading
- 必读材料
- The professor assigned three books as required reading.教授指定了三本书作为必读材料。
- required field
- 必填字段
- All required fields must be filled in before submitting the form.提交表格前必须填写所有必填字段。
- required skills
- 必备技能
- Communication and teamwork are required skills for this job.沟通和团队合作是这份工作的必备技能。
- required documents
学习提示Learner notes
记忆技巧Memory Tip
想象‘re’(再次)加‘quired’(要求),一再要求的东西就是‘必需的’。
语境与语域Context & Register
作为形容词,'required' 的使用场合较为广泛,既可用于正式场合(如官方文件、规则说明),也可用于日常交流(如日常任务、必需品)。但比较常见于需明确指示必要性的语境,如表格填写、课程要求、工作流程等。整体语气中性,不带有特别正式或随意的情感色彩。
语法说明Grammar Note
常与 for, to 或 that 从句连用,表示必要或强制。
发音与拼写Pronunciation & Spelling
These words all end with the /aɪɝd/ sound, matching the ending of 'required'. Spelling '-ired' consistently produces this sound. No lookalikes with different sounds included.
Dictionary facts from ECDICT, WIKTIONARY, WORDNET.