形状

symmetric

形容词

/sə.mɛt.rɪk/ or /sē.met.rik/

s

s

y

ə

mm

m

e

ɛ

t

t

r

r

i

ɪ

c

k

(对称性)

对称的

having identical parts facing each other or around an axis

hemisphere

名词

/hɛ.mɪs.fɪr/ or /he.mis.fir/

h

h

e

ɛ

m

m

i

ɪ

s

s

ph

f

e

ɪ

r

r

e

(半球体)

半球

either half of a sphere

diagonal

形容词

/daɪæ.gə.nəl/ or /daiā.gē.nēl/

d

d

ia

aɪæ

g

g

o

ə

n

n

a

ə

l

l

(斜的)

对角的

(of a straight line) joining opposite corners of a flat shape at an angle

crescent

名词

/krɛs.ənt/ or /kres.ēnt/

c

k

r

r

e

ɛ

s

s

c

e

ə

n

n

t

t

(弯月)

新月

a curved shape with narrow points at the ends that appears wider in the middle, like the shape of the moon in its first and last quarters

arc

名词

/ɑrk/ or /aark/

a

ɑ

r

r

c

k

(弧形)

弧

a curved shape, or something shaped this way

axis

名词

/æk.səs/ or /āk.sēs/

a

æ

x

ks

i

ə

s

s

(轴线)

轴

(geometry) an arbitrary straight line that passes through the center of a symmetrical object or around which an object spins

perimeter

名词

/pɜ.rɪ.mə.tɜr/ or /pē.ri.mē.tēr/

p

p

e

ɜ

r

r

i

ɪ

m

m

e

ə

t

t

e

ɜ

r

r

(周界)

周长

the total length of the external boundary of something

semicircle

名词

/sɛ.mi.sɜrk.lə/ or /se.mi.sērk.lē/

s

s

e

ɛ

m

m

i

i

c

s

i

ɜ:

r

r

c

k

ə

l

l

e

(半圆形)

半圆

any half of a circle

cylinder

名词

/sɪ.lən.dɜr/ or /si.lēn.dēr/

c

s

y

ɪ

l

l

i

ə

n

n

d

d

e

ɜ

r

r

(柱体)

圆柱

(geometry) a solid or hollow shape with two circular bases at each end and straight parallel sides

prism

名词

/prɪ.zəm/ or /pri.zēm/

p

p

r

r

i

ɪ

s

z

ə

m

m

(棱锥)

棱柱

(geometry) a solid figure with flat sides and two parallel ends of the same size and shape

triangular

形容词

/traɪ.æng.jə.lɜr/ or /trai.āng.yē.lēr/

t

t

r

r

ia

aɪæ

n

n

g

g

u

j

ə

l

l

a

ɜ

r

r

(三角的)

三角形的

shaped like a triangle, with three sides and three angles

spiral

形容词

/spaɪ.rəl/ or /spai.rēl/

s

s

p

p

i

aɪ

r

r

a

ə

l

l

(盘旋的)

螺旋的

having a shape that winds around a central point or axis

concentric

形容词

/kən.sɛnt.rɪk/ or /kēn.sent.rik/

c

k

o

ə

n

n

c

s

e

ɛ

n

n

t

t

r

r

i

ɪ

c

k

(同轴的)

同心的

describing circles, arcs, or rings that have the same center

oblong

名词

/ɑb.lɔng/ or /aab.lawng/

o

ɑ

b

b

l

l

o

ɔ

n

n

g

g

(round-edged rectangle)

长方形,椭圆形

a rectangular figure that has unequal adjacent sides with arched angles

oval

名词

/oʊ.vəl/ or /ooo.vēl/

o

oʊ

v

v

a

ə

l

l

(卵形)

椭圆

a shape that is wide in the middle and narrow at both ends

pentagon

名词

/pɛn.ɪ.gɑn/ or /pen.i.gaan/

p

p

e

ɛ

n

n

t

a

ɪ

g

g

o

ɑ

n

n

(五角形)

五边形

a geometric shape with five angles and five straight sides

zigzag

名词

/zɪg.zæg/ or /zig.zāg/

z

z

i

ɪ

g

g

z

z

a

æ

g

g

(锯齿形)

之字形

(geometry) a shape that consists of a line alternating its direction to left and right

concave

形容词

/kɑn.keɪv/ or /kaan.keiv/

c

k

o

ɑ

n

n

c

k

a

eɪ

v

v

e

(凹面形的)

凹的

having a surface that is curved inward

convex

形容词

/kɑn.vɛks/ or /kaan.veks/

c

k

o

ɑ

n

n

v

v

e

ɛ

x

ks

(凸曲的)

凸面的

having a surface that is curved outward

helix

名词

/hi.lɪks/ or /hi.liks/

h

h

e

i

l

l

i

ɪ

x

ks

(螺线)

螺旋

(geometry) a line curved on a conical or cylindrical surface, like a spiral staircase in shape

hexagon

名词

/hɛk.sə.gɑn/ or /hek.sē.gaan/

h

h

e

ɛ

x

ks

a

ə

g

g

o

ɑ

n

n

(六角形)

六边形

(geometry) a closed shape with six straight sides and six angles

polygon

名词

/pɑ.lɪ.gɑn/ or /paa.li.gaan/

p

p

o

ɑ

l

l

y

ɪ

g

g

o

ɑ

n

n

(多角形)

多边形

(geometry) a flat shape consisting of three or more straight sides

octagon

名词

/ɑk.tə.gɑn/ or /aak.tē.gaan/

o

ɑ

c

k

t

t

a

ə

g

g

o

ɑ

n

n

(八角形)

八边形

(geometry) a polygon consisting of eight straight sides and eight angles

rhombus

名词

/rɑ:m.bəs/ or /raam.bēs/

r

r

h

o

ɑ:

m

m

b

b

u

ə

s

s

(平行四边形)

菱形

(geometry) a flat shape with four equal sides in which opposite angles are equal

rhomboid

名词

/rɑ:m.bɔɪd/ or /raam.bawid/

r

r

h

o

ɑ:

m

m

b

b

oi

ɔɪ

d

d

(平行四边形)

菱形

(geometry) a parallelogram with four straight sides and no right angles

conical

形容词

/kɑ.nɪ.kəl/ or /kaa.ni.kēl/

c

k

o

ɑ

n

n

i

ɪ

c

k

a

ə

l

l

(圆锥形的)

锥形的

resembling a cone in shape

cubic

形容词

/kju.bɪk/ or /kyoo.bik/

c

k

u

ju

b

b

i

ɪ

c

k

(立方体的)

立方的

resembling a cube in shape

curl

名词

/kɜrl/ or /kērl/

c

k

u

ɜ

r

r

l

l

(卷曲)

卷发

something that resembles a spiral or coil

lozenge

名词

/lɔ.zənʤ/ or /law.zēnj/

l

l

o

ɔ

z

z

e

ə

n

n

g

ʤ

e

(方形)

菱形

(geometry) a figure with four sides and two opposite angles more than 90° and two of less than 90°