立彬の日本語
光の波は空中で最も速く進み、水中ではそれより遅く、ガラスの中ではもっと遅く進む。
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While light waves travel most quickly through air, they go slower through water and even slower through glass.
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光， ひかり
1. light
2. illumination, ray, beam, gleam, glow
3. happiness, hope
4. influence, power
5. vision, eyesight
6. optical fiber, optical fibre
光；照明、光线、光束、闪光、辉光；幸福、希望；光纤、光导纤维；视觉、视力
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空中， くうちゅう
1. sky, air, mid-air
空中
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最も， 尤も， もっとも， もとも
1. most, extremely
最
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早く， 速く， はやく
1. early, soon
2. quickly, swiftly, rapidly, fast
早；快
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水中， すいちゅう
1. underwater
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それ， 其れ
1. that, it
2. then, that point (in time), that time
3. there
4. you
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遅い， 鈍い， 晩い， 遲い， おそい
1. slow, time-consuming, sluggish
2. late (in the day), towards the end (of the day or night), until a time far into the day or night
3. later (than expected or usual), late, behind schedule, behind time, tardy, overdue, unpunctual
4. too late, havin...
缓慢的、耗时的、迟缓的；傍晚时分；临近傍晚；接近结束的时候(白天或夜晚)；一直持续到很晚的时段(白天或夜晚)；有点晚(比预期或通常情况要晚)，晚了，超出计划时间，逾期，迟到，逾期未交；太晚了，已经错过了机会；愚钝的；愚蠢的
の
1. indicates possessive
2. nominalizes verbs and adjectives
3. substitutes for "ga" in subordinate phrases
4. (at sentence-end, falling tone) indicates a confident conclusion
5. (at sentence-end) indicates emotional emphasis
6. (at sentence-end, risi...
句尾起强调作用；助词，表示所有关系
は
1. indicates sentence topic
2. indicates contrast with another option (stated or unstated)
3. adds emphasis
指示句子的主题
で
1. at, in
2. at, when
3. by, with
4. within, in
5. and then, so
6. and, then
7. let me tell you, don't you know
表示范围
より
1. than
2. rather than, instead of, over, above
3. from, out of, since, at, on (and after)
4. except, but, other than
5. more
更，更加
中， なか
1. inside, interior
2. among, within
3. middle, center, centre
4. during, while, middle, midst, amid
5. interval, gap
6. mean, average
7. second (of three, e.g. sons, volumes), middle
8. medium grade, medium quality
9. red-light district
内，内部；中，其中；中，中心；当……，……时，……期间；中等