A two-dimensional object or figure is flat rather than solid so that only its length and width can be measured.
双语例句
例：
new software, which generates both two-dimensional drawings and three-dimensional images.
可以生成二维图画和三维图像的新软件。
例：
The conifers looked like two-dimensional cutouts against the white sky.
那些松柏看上去像白色天空背景下的二维纸板模型。
2.?（虚构的人物形象）无深度的 , 平面化的
If you describe fictional characters as two-dimensional, you are critical of them because they are very simple and not realistic enough to be taken seriously.
双语例句
例：
I found the characters very two-dimensional and dull.