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- A unit of retinal illumination, equal to the amount of light that reaches the retina through 1 square millimeter of pupil area from a surface having a brightness of 1 candela per square meter. 光度視網膜亮度單位，相當於每平方米有一燭光亮度的表面，通過一平方毫米的瞳孔區域，到達視網膜的光線數量
- Angstrom unit: A unit of measurement of the length of light waves. It is equal to 1/10 of a millimicron. 同一個數值（大約每秒每秒一埃）能夠適用於那麽多不同的情況，也算是這個理論的成功之處。
- The portrait shows fine effects of light and shade. 這幅肖像畫的濃淡色調錶現得很好。
- He can see a glimmer of light through the curtain. 他能透過窗帘看到一絲微光。
- A member of any of similar, ornately uniformed European units of light cavalry. 輕騎兵成員類似的、軍服花哨的歐洲輕騎兵部隊成員
- The family is the basic unit of society. 家庭是社會的基本單位。
- Aluminum is a kind of light silvery metal. 鋁是一種輕薄並呈銀色的金屬。
- The plant was starved of light and died. 這株植物因為極度缺乏光照而死了。
- A metric unit of area equal to 10 ares. 十公畝面積的公制單位之一，等於十公畝。
- A metric unit of mass equal to 100 grams. 百克公制質量單位，等於100克。
- A unit of power equal to 1,000 watts. 千瓦功率的單位，等於1,000瓦。
- Do you agree to the wave theory of light? 你同意光的波動理論嗎？
- A unit of frequency equal to one cycle per second. 赫茲頻率的單位，等於每秒一周
- A unit of retinal illumination,equal to the amount of light that reaches the retina through1 square millimeter of pupil area from a surface having a brightness of1 candela per square meter. 光度視網膜亮度單位，相當於每平方米有一燭光亮度的表面，通過一平方毫米的瞳孔區域，到達視網膜的光線數量
- A unit of currency in Chile, Panama, and Uruguay. 分智利、巴拿馬和烏拉圭的貨幣單位
- The trees outside the windows deprive the house of light. 窗外的樹木把房子遮擋得暗然無光。
- A unit of currency in North Korea and South Korea. 朝鮮和韓國的一種貨幣單位
- An organ of vision or of light sensitivity. 眼睛感受視覺或光覺的器官
- The monetary unit of Great Britain is the pound. 英國的貨幣單位是鎊。
- We saw a spark of light through the trees. 我們透過樹叢看到閃光。
