IELTS学术词汇 (分数5) - 形状

having an empty space within

(of a surface) continuing in a straight line with no raised or low parts

having a circular shape, often spherical in appearance

having four even sides and four right angles, forming a shape resembling a regular square

shaped like a rectangle, with four right angles

having a shape like a circle

rounded in shape but wider in one direction, such as the shape of an egg

shaped like a triangle, with three sides and three angles

without bending or curving in any angle or direction