Now in a new layer above the watercolor layer, and drawing straight up, make a Linear Gradient going from black to transparency so that afterwards your canvas basically fades to black down the bottom.

现在在水彩图层之上再新建一个图层，然后从下至上从黑色到透明做线性递减绘制，这样基本上整个画布到底部就褪化为黑色了。

youdao

I must have a look down into the black caldrons.

我得朝那些黑罐子里看一看。

youdao

The black and white flag went down, and the race began.

黑白旗落下，赛跑开始了。

《牛津词典》

They include Armageddon, Pearl Harbor,Black Hawk Down and the National Treasure movies starring Nicolas Cage.

VOA: special.2010.03.12

There was the wonder I felt when I saw a brace of mountain like, spotted, black-and-white horses clopping down a dusty road through clouds of powdered clay.

我觉到很美妙,当我望见一大群如山般高大的，黑白斑点马压过土路,我觉到很快乐。

耶鲁公开课 - 1945年后的美国小说课程节选

So, if you use a black lamp or something and you excite something up to a higher energy level and then it relaxes back down to its lower energy state, it's going to emit a new wavelength of light, which is going to be visible to you.

如果你用一个紫外灯或别的,东西把某种分子激发到,更高的能级，然后它会掉回,到低能级，它就会释放,一个新的波长的光,这个光是可见的。

麻省理工公开课 - 化学原理课程节选

The headset is draped in white and black down to the detachable braided cables -- a color scheme we're not in love with.

ENGADGET: Turtle Beach XP Seven Series headset review: a new era of tournament-grade gaming audio

The headset is draped in white and black down to the detachable braided cables -- a color scheme we're not exactly in love with.

ENGADGET: Turtle Beach XP Seven Series headset review: a new era of tournament-grade gaming audio

Ms. RICE: Well, I think those of us who served in government, as I did, from the time of Black Hawk Down, and, in fact, before Black Hawk Down, through the end of the administration, were traumatized in many respects, as was our Congress, as was our public, by the experience of Black Hawk Down.

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