elliptical selection tool 椭圆形选择工具
To select the outer circle, create an elliptical selection around the circle.
要创建其外圆，要创建一个近似正圆的椭圆。
Step 55: Shadow Draw elliptical selection under the communicator and fill it with black.
第五十五步：在主体底部建一椭圆选区，填充黑色。
Select the elliptical Marquee Tool, and then make an elliptical selection at the bottom of your welcome image.
选择椭圆选框工具，然后在欢迎图片下方画一个椭圆。
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