单词semicircle
n.: 半圆；半圆弧线；半圆形
网络: 半圆形体；半圆形的东西；半圆型
半圆:
one half of a circle
半圆弧线:
the line that forms the edge of a semicircle
半圆形:
a thing, or a group of people or things, shaped like a semicircle
半圆形体
复数：semicircles
We carried the litter in a wide semicircle around the spot where I had come close to the dropoff.
我们抬着担架，围着我刚才差一点掉下去的地方绕了大大的半个圆圈。
He was standing in a dimly lit room, and a semicircle of wizards faced him, and on the floor at his feet knelt a small, quaking figure.
他正站在一个灯光昏暗的房间里，巫师们面向他围成半圆，他脚边的地板上跪着一个颤抖的矮小身影。
An air bubble ascending from the ocean floor contorts and twists into a semicircle as a wave breaks in the background.
自海洋底部上升的气泡在受到波浪冲击时，扭曲、盘旋成一个半圆形。
The children sit in a semicircle, listening closely(attentively) to my stories.
孩子们围坐成半圆形，专心地听我讲故事。
The tube comprising the semicircle arc plate is fixed at the bottom side and the side wall of the heating tube.
半圆弧形板构成的管道固定在底边和侧壁上。
At the end of the lesson, group gathered about the teacher in a semicircle to ask additional questions.
课后，一群人在老师旁边围成半圆形，提出附加的问题。
Cut the circular cake in half and set each semicircle against adjoining sides of the square to form the top of the heart.
把烤好的圆蛋糕切成两半，再把每个半圆连接起来形成心型的顶部，另外两边形成顶点。
This led to the construction of earthen or stone steps, arranging the audience into a semicircle in front of the speaker.
这导致了泥土阶或石阶的建构，安排观众们面对讲演者坐成一个半圆形。
and two fastening pieces are used for fastening tightly the lugs of the two semicircle arciform clamping hoops.
两个紧固件，其用于紧固两个半圆拱状卡箍件的凸耳。
The side of the lock-up set is provided with a semicircle lug boss, which is allocated with the semicircle groove arranged on the shell.
锁止套周侧设置半圆凸台，半圆凸台与设置在壳体上的半圆凹槽相配置。