If you absolutely must use a computer or mobile device later in the day, at least turn the screen brightness way down to semi-counter the effect of the light.
如果在睡前你不得不使用电脑或移动设备，那请将亮度调低以减弱其影响。
Warm breath, light whisper, tender semi-tone.
热烈的呼吸，温柔的低音，耳语。
The green laser is a semi-reflection mirror. It combines the light beams of two (or more) wavelength into one direction by transmission and reflection.
合束镜是一种半透反射镜，它将两种（或多种）波长的光线分别通过透射和反射的方法合成到一条光路上。
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