Geometry

The dice used in board games are typically shaped like cubes.

椭圆形的, 卵形的

The oval mirror hung above the dresser, reflecting the room's decor with its elegant curvature.

椭圆形的镜子挂在梳妆台上方，以其优雅的曲线反射出房间的装饰。

角度, 角度 (测量)

She used a protractor to measure the angle of the triangle accurately.

她用了一个量角器来准确测量三角形的角度。

线, 线条

The child scribbled colorful lines on the paper.

孩子在纸上涂鸦了彩色的线条。

点, 主要观点

The professor made a crucial point about the importance of environmental conservation.

金字塔, 金字塔纪念碑

Tourists flock to see the ancient pyramids in Egypt.

游客蜂拥而至，观看埃及的古老金字塔。

表面, 层

He used a soft cloth to clean the dusty surface of the bookshelf.

他用一块软布清洁了书架上布满灰尘的表面。

心脏, 心

He couldn't hide the happiness in his heart when he saw his loved ones after a long time.

当他长时间后见到所爱的人时，他无法隐藏心中的幸福。

圆, 圆形

She used a compass to draw a small circle on the map.

她用指南针在地图上画了一个小圆圈。

正方形, 方形

Each tile on the bathroom floor was a small square shape.

浴室地板上的每一块瓷砖都是一个小正方形形状。

拱门, 拱顶

The Golden Gate Bridge in San Francisco is a famous example of a suspension bridge with massive arches.

旧金山的金门大桥是带有巨大拱门的悬索桥的著名例子。

之字形, 折线

半圆, 半圆形

The children sat in a semicircle around the teacher during story time.

在故事时间，孩子们围着老师坐成一个半圆。

盘旋, 螺旋上升

The smoke has spiraled upward from the chimney into the night sky.

烟雾从烟囱螺旋状上升到了夜空中。

曲线, 弯曲的线

He drew a curve on the paper to represent the arc of the ball's trajectory.

他在纸上画了一条曲线来表示球的轨迹弧。

磁盘, 外置磁盘

She saved the important files to an external disk to back them up in case of computer failure.

她将重要文件保存到外部磁盘上，以便在计算机发生故障时进行备份。

半球, 半球体

The sports arena's roof was designed in the shape of a hemisphere.

体育场的屋顶被设计成半球的形状。

叶, 圆形部分

The brain is divided into different lobes, each responsible for specific functions such as sensory perception, motor control, and language processing.

大脑分为不同的叶，每个叶负责特定的功能，如感觉感知、运动控制和语言处理。

矩形, 长方形

In geometry class, they practiced calculating the area of a rectangle.

在几何课上，他们练习计算矩形的面积。

三角形, 三角形状

The artist used a triangle shape to create a dynamic composition.

艺术家使用三角形形状来创建动态构图。

锐角, 小于90度的角

钝角, 凹角

In a triangle, an obtuse angle is one that is greater than 90 degrees but less than 180 degrees.

在三角形中，钝角是大于90度但小于180度的角。

直角, 90度角

To construct a square, each corner must form a perfect right angle.

要构造一个正方形，每个角必须形成一个完美的直角。

平角, 180度角

The Earth spins on its axis once every twenty-four hours.