Use the Outer glow option to add a very slight grey border, adjusting the Spread to the Max will turn the default glow into a solid strip of colour which helps add this double stroke effect.
继续用外发光来添加一个浅灰色的边，调整扩展值到最大这样我们可以得到一个双边线效果。
2
But, you know, it gives you an example where you can turn are really hard line integral into an easier double integral.
但是你知道，它给了你一个例证，其中你可以，把复杂的线积分化成简单些的二重积分。
3
This double pressure forces a creative person to turn his attention to private life.