You should use the fill-in flash.
對話
Ian: I'm a bit disappointed with some of my vacation snaps.
Bob: They mostly look fine to me.
Ian: But on these where I photographed my friends against the sun, their
faces are quite dark. You can't really see them clearly.
Bob: Ah, in those kind of conditions you should use the fill-in flash setting on your camera.
Ian: What will that do?
Bob: It will make their faces lighter so that you can see them better when the sun's behind them.
奕恩：我對假期拍的一些生活照不太滿意。
巴布：我看大部分都不錯啊。
奕恩：但請看這幾張，我拍時，朋友背向著太陽，結(jié)果面孔頗為陰暗，實在看不清楚。
巴布：啊，在這樣的情況下，你應該用照相機的補充閃光裝置。
奕恩：這有什么用處？
巴布：閃光裝置會使面孔看起來光亮一點，這樣，太陽在你的朋友背后，他們的樣子也會清楚些。
太陽下拍照往往不容易：面向陽光，眼睛會不由自主瞇起來；背向陽光，面孔光線不足；正午太陽當頭，則眼眶和鼻子、嘴巴的陰影很不美觀。用一般閃光燈(flash)，可以憑其強光清除陰影，但照片看來會不自然，所以用較柔和的補充閃光(fill-in flash): If you don't want your subject（拍攝對象）to squint（瞇著眼睛）in the sun, or to have dark eye sockets（眼窩）and shadows under the nose and lips, you may shoot（拍攝）him against the sun using fill-in flash。
Flash除了指‘閃光燈’，還可解作‘閃光’。有些人不用補充閃光燈，而用反光板，那英文叫做reflector，例如：As more light was needed on her face, we sent for a reflector（她臉部要多點光，我們于是叫人拿塊反光板來）。奕恩拍照沒有用補充閃光燈或反光板，拍出來的照片就不稱心：I'm a bit disappointed with some of my vacation snaps。Snap作動詞，本來是‘迅速抓住’的意思，例如：I snapped at the chance of working with such a brilliant scientist（有機會和這樣出色的科學家合作，我當然不會放過）。用照相機，可以抓住事物一時的神態(tài)，所以snap常引申解作‘拍照’，例如：I snapped my son while he was happily eating ice cream（我趁兒子快快活活吃冰淇淋的時候，幫他拍了照片）。作名詞，snap或snapshot即‘快照’、‘便照’，例如：I took a snap of the volcanic eruption（我拍了火山爆發(fā)的照片）。
對話
Ian: I'm a bit disappointed with some of my vacation snaps.
Bob: They mostly look fine to me.
Ian: But on these where I photographed my friends against the sun, their
faces are quite dark. You can't really see them clearly.
Bob: Ah, in those kind of conditions you should use the fill-in flash setting on your camera.
Ian: What will that do?
Bob: It will make their faces lighter so that you can see them better when the sun's behind them.
奕恩：我對假期拍的一些生活照不太滿意。
巴布：我看大部分都不錯啊。
奕恩：但請看這幾張，我拍時，朋友背向著太陽，結(jié)果面孔頗為陰暗，實在看不清楚。
巴布：啊，在這樣的情況下，你應該用照相機的補充閃光裝置。
奕恩：這有什么用處？
巴布：閃光裝置會使面孔看起來光亮一點，這樣，太陽在你的朋友背后，他們的樣子也會清楚些。
太陽下拍照往往不容易：面向陽光，眼睛會不由自主瞇起來；背向陽光，面孔光線不足；正午太陽當頭，則眼眶和鼻子、嘴巴的陰影很不美觀。用一般閃光燈(flash)，可以憑其強光清除陰影，但照片看來會不自然，所以用較柔和的補充閃光(fill-in flash): If you don't want your subject（拍攝對象）to squint（瞇著眼睛）in the sun, or to have dark eye sockets（眼窩）and shadows under the nose and lips, you may shoot（拍攝）him against the sun using fill-in flash。
Flash除了指‘閃光燈’，還可解作‘閃光’。有些人不用補充閃光燈，而用反光板，那英文叫做reflector，例如：As more light was needed on her face, we sent for a reflector（她臉部要多點光，我們于是叫人拿塊反光板來）。奕恩拍照沒有用補充閃光燈或反光板，拍出來的照片就不稱心：I'm a bit disappointed with some of my vacation snaps。Snap作動詞，本來是‘迅速抓住’的意思，例如：I snapped at the chance of working with such a brilliant scientist（有機會和這樣出色的科學家合作，我當然不會放過）。用照相機，可以抓住事物一時的神態(tài)，所以snap常引申解作‘拍照’，例如：I snapped my son while he was happily eating ice cream（我趁兒子快快活活吃冰淇淋的時候，幫他拍了照片）。作名詞，snap或snapshot即‘快照’、‘便照’，例如：I took a snap of the volcanic eruption（我拍了火山爆發(fā)的照片）。