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。

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Once you are in the habit of considering how the light is falling on your subject you can select a viewpoint and time of day so that the light enhances your subject, rather than detracts from it.

一旦你形成了考虑光是如何落到你的主题物上的习惯，你就会形成自己的观点和每天的时间点来增强你的照片效果，而不是损伤它。

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To maintain control select and stay in a low gear and adjust speed with light pressure on the footbrake .

为保持对车辆的控制，驾驶人可选择和维持以低速档行车，并可轻踏煞车掣，调节速度。

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Last week a report from the Commons Education Select Committee issued a "red light" warning to the government, urging it to slow down and rethink its proposed changes to GCSEs and the exam system.

BBC: Planned switch from GCSEs to Baccalaureate in England 'abandoned' - BBC News

Last month the Commons Education Select Committee issued a damning report into the plans, which it described as a "red light" warning over the changes.

BBC: Q&A: Changes to the teaching of key subjects