軽い， かるい， かろい
1. light (i.e. not heavy), feeling light (i.e. offering little resistance, moving easily)
2. light (i.e. of foot), effortless, nimble, agile
3. non-serious, minor, unimportant, trivial
4. slight, small, gentle, soft, easy, lighthearted (e.g. joke)
5....
轻(不重)；不严重，不重要
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@ 明るい， あかるい
1. light, well-lit, well-lighted
2. bright (of a colour), brightly-coloured, brightly-colored
3. cheerful, bright, spirited, sunny (e.g. disposition)
4. encouraging (for the future of a project, etc.), promising, of fair prospects
5. familiar (with),...
光明的；明亮的；高兴的，兴高采烈的；鼓舞人心的；熟悉，清楚；公平，公正