one-half of [noun]
后接名词短语，表示某物的二分之一。
He ate one-half of the pizza.
他吃了比萨饼的二分之一。
一半；二分之一
one of two equal parts; 1/2
二分之一。
One of two equal parts (1/2, 1⁄2, 0.5).
The recipe requires one-half cup of sugar.
这个食谱需要二分之一杯糖。
用法提示：这里 one-half 作定语，修饰 cup，表示一半的量。
One-half of the students passed the exam.
二分之一的学生通过了考试。
用法提示：这里 one-half 作主语，表示整体的二分之一部分。
She divided the cake into two equal pieces and gave him one-half.
她把蛋糕分成两块相等的，给了他二分之一。
用法提示：这里 one-half 作宾语，指蛋糕的一半。
后接名词短语，表示某物的二分之一。
He ate one-half of the pizza.
他吃了比萨饼的二分之一。
用于度量单位前，相当于‘半’。
Add one-half teaspoon of salt.
加入二分之一茶匙盐。
The cost is one-half of the original price.
成本是原价的二分之一。
grammar · medium
易错句子The recipe calls for one half cup of sugar.
正确表达The recipe calls for one-half cup of sugar.
当“one-half”作为复合形容词修饰名词时，应使用连字符连接，表示“二分之一的”。
grammar · medium
易错句子I have one-half of the apples, and you have the other half.
正确表达I have half of the apples, and you have the other half.
在非修饰名词的独立使用中，表示“一半”通常直接用“half”即可，用“one-half”显得冗余且不自然。
half 可指整体的一半，而 one-half 是精确的分数二分之一，在数学或正式文体中应使用 one-half。
one and a half 表示1.5，而 one-half 是0.5，二者数值不同。
half
half + -es (f→v)
half + way
half + price
one + side + -ed
one + way
Choose the next layer that will help you use one-half with more confidence.
Recommended next
Missing: Collocations
Complete this area with collocations.
Includes Context & register & Memory tip
Analyze the context and learn memory tricks to remember it.
More ways to explore
Includes Synonyms & Antonyms
Expand your vocabulary with synonyms and antonyms.
Includes Spelling & sound
Explore words with similar spelling endings or sounds.
Includes Word components & Thematic vocabulary
Learn how to build related words using roots, prefixes, and thematic clusters.
Includes Idioms & Cultural references
Discover idioms, slang, and famous pop culture quotes.
Dictionary facts from ECDICT, WIKTIONARY, WORDNET.