1. Mother lit the gas and began to cook the dinner. 妈妈点上煤气，开始做饭。
2. The optimists see light in the dark. 乐观的人在黑暗中看见光明。
3. Lenses change the vergence of light waves. 透镜可以改变光波的聚散度。
英英解释
n.
1. (physics) electromagnetic radiation that can produce a visual sensation
2. any device serving as a source of illumination
3. a particular perspective or aspect of a situation
4. the quality of being luminous; emitting or reflecting light
5. an illuminated area
6. a condition of spiritual awareness; divine illumination
7. the visual effect of illumination on objects or scenes as created in pictures
8. a person regarded very fondly
9. mental understanding as an enlightening experience
10. having abundant light or illumination
11. public awareness
12. merriment expressed by a brightness or gleam or animation of countenance
13. a divine presence believed by Quakers to enlighten and guide the soul
14. a visual warning signal
15. a device for lighting or igniting fuel or charges or fires v.
1. make lighter or brighter
2. begin to smoke
3. to come to rest, settle
4. cause to start burning; subject to fire or great heat
5. fall to somebody by assignment or lot
6. get off (a horse) adj.
1. of comparatively little physical weight or density
2. (used of color) having a relatively small amount of coloring agent
3. of the military or industry; using (or being) relatively small or light arms or equipment
4. not great in degree or quantity or number
5. psychologically light; especially free from sadness or troubles
6. characterized by or emitting light
7. used of vowels or syllables; pronounced with little or no stress
8. easily assimilated in the alimentary canal; not rich or heavily seasoned
9. (used of soil) loose and large-grained in consistency
10. (of sound or color) free from anything that dulls or dims
11. moving easily and quickly; nimble
12. demanding little effort; not burdensome
13. of little intensity or power or force
14. (physics, chemistry) not having atomic weight greater than average
15. weak and likely to lose consciousness
16. very thin and insubstantial
17. marked by temperance in indulgence
18. less than the correct or legal or full amount often deliberately so
19. having little importance
20. intended primarily as entertainment; not serious or profound
21. silly or trivial
22. designed for ease of movement or to carry little weight
23. having relatively few calories
24. (of sleep) easily disturbed
25. casual and unrestrained in sexual behavior adv.
1. with few burdens
