If epidemiologists had access to a heavily populated game, they could watch how players' behavior changes in response to variations in the risks they face.

如果流行病学家能介入玩家众多的游戏，他们就可以观看玩家面临不同种类危险时，行为是如何变化的。

youdao

It was too dark to see the face of my watch.

天太黑了，以致看不见我表盘上的时间。

《柯林斯英汉双解大词典》

Watch the look on his face.

看着他脸上的表情。

youdao

who watch the news and see the pictures but when they're able to put a true voice and face to what's going on down there and I think said McPhee.

VOA: standard.2010.06.19

With some configurations, the watch face can even match the clarity and appearance of ink on paper.

ENGADGET: Phosphor's Reveal wristwatch uses Swarovski crystals to tell time, bedazzle you

The watch face also offers a 'seconds'mode and 'off'mode, showing an entire face of crystals with no time display.

ENGADGET: Phosphor's Reveal wristwatch uses Swarovski crystals to tell time, bedazzle you

Looks like something you could do on a round watch face, eh?

FORBES: Will Apple's iWatch Usher In A New Time-Based User Interface?