I can't expose my skin under the focuslamp too long.
我不能把皮肤暴露在聚光灯下太久。
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He put them on and his bedroom came into clearer focus, lit by a faint, misty orange light that was filtering through the curtains from the street lamp outside the window.
The result of the study indicates that when metal halide lamp is used in lighting, it make for the pupil shrink, in other word, it can make people focus on the target.