You need a flash unit with a tilt head or the ability to mount the flash off-camera on a flash bracket.

你需要有一个能调节闪光角度的闪光灯，或一个离开相机的闪光灯架。

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Flash lamp, bettery box, lambency box, sunshade board, reflector board, lambency umbrella, bracket, lamp-chimney, lamp for outdoor etc.

闪光灯，电箱，柔光箱，遮光板，反光板，柔光伞，支架，灯罩，外拍灯等。

youdao

Flash lamp, bettery box, lambency box, sunshade board, reflector board, lambency umbrella, bracket, lamp-chimney, lamp for outdoor etc.

闪光灯，电箱，柔光箱，遮光板，反光板，柔光伞，支架，灯罩，外拍灯等。

youdao