Word · Frequency #22693
bisect
把…分成两半；对分；平分
cut in half or cut in two
- 1.
To cut or divide into two parts.
切成或分成两部分。
切成或分成两部分。；分成两部份；对分
In use
A narrow river bisects the old town.
We bisected the cake and each of us took half.
The builders are bisecting the plot with a new wall.
bisect sth
The new highway will bisect the quiet village.
新公路将把这个安静的村庄分成两半。
be bisected by sth
常用被动语态，强调由某物把整体分成两部分。
The field is bisected by a narrow stream.
这块田地被一条狭窄的小溪分成两半。
Verb forms
base bisect · third person bisects · -ing bisecting · past bisected · past participle bisected
bisect 是规则动词，意为“分成两半/对分”，常用于几何或切割场景。
Common mistakes
The teacher bisected the frog in biology class.The teacher dissected the frog in biology class.
“bisect” 表示把物体平分成两半，而 “dissect” 才表示“解剖、仔细切开”以进行研究。此处宾语是青蛙，意在解剖，故须用 dissect。
The line bisects.The line bisects the angle.
“bisect” 是及物动词，后面必须接被平分的对象；不能单独使用。补上宾语 “the angle” 后意思才完整。
The two roads bisect at the square.The two roads intersect at the square.
“bisect” 指“把某物分成两半”，而两条路交叉相会应用 “intersect”。此句表达两条路在广场相交，故须改用 intersect。
Connections
Collocations
- bisect an angle
- 平分一个角
- Use a compass to bisect the angle.用圆规把这个角平分。
- bisect a line segment
- 把一条线段二等分
- The teacher showed us how to bisect a line segment with a ruler and compass.老师向我们展示了如何用直尺和圆规把一条线段二等分。
- the river bisects the city
- 河流把城市分成两半
- The river bisects the city into northern and southern halves.这条河把城市分成南北两半。
- be bisected by
- 被……分成两半
- The field is bisected by a narrow road.这块田地被一条窄路分成两半。
- bisect the circle
- 把圆分成两半
- A diameter bisects the circle.直径把圆分成两半。
Synonyms
Learner notes
Memory Tip
bi-表示“两”，sect像section（切）→一刀切成两半，即对分。
Context & Register
语域：formal 常见场景：geometry、formal writing 该词通常较正式，多见于几何等专业领域或正式书面语；日常口语中更常说 cut in half。
Grammar Note
常用于数学或正式文体，表示将某物分成相等的两半。
Pronunciation & Spelling
Words ending in /ɛkt/ with stress on the final syllable — sect, dissect, detect, respect, erect — genuinely rhyme with bisect. Insect shares the /sɛkt/ ending but stresses the first syllable, so it is a near rhyme rather than a true rhyme. Beware lookalikes such as biscuit /ˈbɪs.kɪt/, which sounds very different.
Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.