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semicircles

/ˌsɛmiˈsɜːrkl̩z/ /ˌsɛmaɪˈsɜːrkl̩z/

Meanings
noun

半圆，半圆形

Half of a circle.

Examples :

"The rainbow appeared as a series of colorful semicircles in the sky after the rain. "
雨后，天空中出现了一道道彩虹，看起来像一系列彩色的半圆形。
math part

Related Words

Illustration measure

measure noun

/ˈmɛʒə/ /ˈmɛʒɚ/

衡量，措施

"The recipe calls for a precise measure of baking soda. "

这个食谱要求精确分量的烘焙苏打。

Illustration surveyor

surveyor noun

/sərˈveɪər/ /sɜːˈveɪər/

测量员，勘测员。

"The surveyor used special equipment to measure the boundaries of the new school property. "

测量员用专业的设备来测量新学校用地的边界。

Illustration appeared

appeared verb

/əˈpiːɹd/ /əˈpɪəd/ /əˈpɪɹd/

出现，显现。

"The sun appeared from behind the clouds. "

太阳从云后出现了。

Illustration series

series noun

/ˈsɪə.ɹiːz/ /ˈsiɹiz/

系列，连续，一连串

"A series of seemingly inconsequential events led cumulatively to the fall of the company."

一连串看似无关紧要的事件最终累积起来，导致了公司的倒闭。

Illustration after

after adjective

/ˈæf.tə(ɹ)/ /ˈæf.tɚ/

后面的，以后的，随后的

"The after-school program is a great way for kids to continue learning. "

课后活动项目是孩子们继续学习的好方法。

Illustration instrument

instrument noun

/ˈɪnstɹəmənt/

乐器， 器材。

"The violinist was a master of her instrument."

这位小提琴家是她的乐器大师。

Illustration angles

angles noun

/ˈæŋɡəlz/ /ˈæŋɡl̩z/

角，角度。

"the angle between lines A and B"

A线和B线之间的夹角

Illustration half

half noun

/hɑːf/

一半，二分之一.

"I ate the slightly smaller half of the apple."

我吃了苹果稍微小的那一半。

Illustration colorful

colorful adjective

/ˈkʌləfəl/ /ˈkʌlɚfəl/

色彩鲜艳，五彩缤纷

"The parrot's feathers were colorful, with shades of green, blue, and yellow. "

这只鹦鹉的羽毛色彩鲜艳，五彩缤纷，有绿色、蓝色和黄色。

Illustration rainbow

rainbow noun

/ˈɹeɪnbəʊ/ /ˈɹeɪmboʊ/

彩虹，虹。

"After the rain stopped, a beautiful rainbow arched across the sky. "

雨停之后，一道美丽的彩虹横跨天空。

Illustration circle

circle noun

/ˈsɜɹkəl/ [ˈsɜː.kəɫ] [ˈsɝ.kəɫ]

圆圈，圆形。

"The set of all points (x, y) such that (x − 1)2 + y2 = r2 is a circle of radius r around the point (1, 0)."

所有点 (x, y) 满足 (x − 1)² + y² = r² 的集合构成一个以点 (1, 0) 为圆心，半径为 r 的圆圈。

Illustration measuring

measuring verb

/ˈmɛʒ.ə.ɹɪŋ/ /ˈmɛʒ.ɚ.ɪŋ/

测量，衡量

"We measured the temperature with a thermometer.   You should measure the angle with a spirit level."

我们用温度计测量了温度。你应该用水平仪测量角度。