If the venue of your presentation is not adequately light-proof, select a dark-colored background and use any light color for text.

如果演示的地点不具备足够的防光性，请选择深色背景，并为文本使用任何浅色。

youdao

Another fighter spoke up: "If you stand still in the dark and not move they can't see you."

另一个战士大声说道：“如果你在黑暗中站着不动，他们就不会看到你。”

youdao

If true this could mean that the ripples are significantly smaller, which could imply that dark matter and dark energy are not present after all.

如果情况属实，这可能意味着波纹明显较小，这意味着，暗物质和暗能量可能并不存在。

youdao

The two slipcased volumes cover advertisements from the 1950s and '60s, showing the industry's rapid progress in the dark arts, if not in liberal attitudes.

WSJ: Speaking Volumes

But during cross-examination, Valerie admitted he was not sitting that close to Simpson, the plane was dark on the overnight flight and he really did not know if Simpson had finger cuts.

CNN: simpson

Both, if true, suggest amateurism at worst, not mastery of the dark arts.

ECONOMIST: Russian espionage