1
constrain something
此结构表示限制某事物。
The new regulations constrain our ability to operate.
新规定限制了我们的运营能力。
限制；约束
constrained — past of constrain
先理解核心含义，再看它在真实句子里的用法。
限制；约束
To keep something within limits; to restrict or confine.
The new regulations constrain our ability to operate.
新规定限制了我们的运营能力。
通过强力说服或施压来强迫；迫使；使有义务
To force physically, by strong persuasion or pressuring; to compel; to oblige.
使限制在紧密范围内；禁闭
To keep within close bounds; to confine.
因资源有限而减少结果
To reduce a result in response to limited resources.
constrain
Base
原形
constrains
3rd person
第三人称单数
constraining
-ing
现在分词
constrained
Past
过去式
constrained
Past participle
过去分词
Budget constraints often constrain our choices.
预算限制常常制约我们的选择。
The rules constrained their creativity.
这些规则限制了他们的创造力。
Recent events have constrained the company's expansion.
近期事件限制了公司的扩张。
规则动词
The new regulations constrain the company's ability to expand.
新规定限制了公司的扩张能力。
She felt constrained by her strict upbringing.
她觉得被严格的教养所束缚。
Economic factors are constraining growth in the region.
经济因素正在制约该地区的增长。
此结构表示限制某事物。
The new regulations constrain our ability to operate.
新规定限制了我们的运营能力。
此结构表示阻止某人做某事。
Social norms constrain individuals from expressing their true feelings.
社会规范约束人们不表达真实感受。
被动结构，表示受某因素限制。
Their choices are constrained by limited resources.
他们的选择受到资源有限的约束。
Not this
The budget constrains.
Use this
The budget constrains our spending.
constrain 是及物动词，后面必须接宾语。'The budget constrains.' 缺少宾语，应补充被限制的对象，如 'our spending'。
Not this
She constrained her anger.
Use this
She restrained her anger.
constrain 通常指外力强制或限制，而 restrain 指主动克制或阻止。'constrain anger' 搭配不当，应改为 'restrain anger'。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
限制某人做某事
The new law constrains companies from dumping waste in rivers.
新法律限制公司向河流倾倒废物。
受…限制
Our research is constrained by a lack of funding.
我们的研究因缺乏资金而受到限制。
限制增长
High taxes constrain economic growth.
高税收限制了经济增长。
限制访问
The password constrains access to confidential files.
密码限制了对机密文件的访问。
限制贸易
Tariffs constrain international trade.
关税限制了国际贸易。
限制自己于
She constrained herself to one cup of coffee per day.
她限制自己每天只喝一杯咖啡。
阻止某人做某事
The contract constrained him from disclosing confidential information.
合同阻止他披露机密信息。
将某事限制在…范围内
The budget was constrained within a narrow limit.
预算被限制在狭小的范围内。
Use constrained naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
联想：con（一起）+ strain（拉紧）→ 一起拉紧，限制或强迫。想象用绳子紧紧捆住。
该词用法较正式，多用于书面或正式场合，可表示强迫、限制或关押，具体含义依语境而定。
后接名词或代词作宾语，常用于被动结构，也可接带to的不定式复合结构。
Dictionary facts from ECDICT, WIKTIONARY, WORDNET.