英语翻译The size at which you initially create the brush will become its default size.

英语翻译
The size at which you initially create the brush will become its default size.

你创立的刷子的初始大小会成为默认大小.The size主语,at which you initially create the brush定语从句 become谓语,its default size表语

你起初创建的刷子的尺寸将成为其默认尺寸
结构：The size（主语）at which you initially create the brush(定语从句)will become（谓语）its default size（宾语）