如果你需要用闪光灯的话，把两部相机的闪光灯都打开，做好准备拍出的照片可能有点怪。

If you need to use flash, turn on the flashes for both cameras and expect things to come out a little weird.

youdao

现在闪光灯也可以用来发出闪光了。

The flash can now also be used as a flashlight.

youdao

当你准备好时，你可能想学习更进阶的技巧，结合TTL闪光灯使用闪光灯曝光补偿和一般曝光补偿。

When you're ready, you might want to learn more advanced techniques using flash Exposure Compensation and general Exposure Compensation controls in conjunction with TTL flash.

youdao

For those of you for--with iPhone 4, by far, the most useful application for 99 cents is this flashlight in the middle of the night.

对你们这些用iPhone，4的人，目前，在午夜最有用的东西,就是这个99美分的闪光灯应用了。

哈佛公开课 - 计算机科学课程节选