Sarah eagerly enrolled in the painting class, holding her new brushes.

莎拉迫不及待地报名绘班，手里还攥着新。

The paintbrush was too stiff to use.

太硬,没法用。

Artists' brushes are sometimes made of sable.

家的有的是用貂毛制的。

This is not my writing brush.

这不是我的。

He picked his brushes and palette.

他提起调色板。

Select Burn Tool, select brush diameter around 45, set Range to Midtones, set Exposure to around 8-10%.

选择深工，直径45左右，将范围设置为中间调（图片中为阴影，应该是作者写错），将曝光设置为8-10%。

If you’re serious about taking up painting, invest in good quality brushes and canvas. After all, it’s no good trying to make a silk purse out of a sow’s ear.

如果你真想搞绘，就花钱买质量好点的布。毕竟劣材难成器。