兄は読書に夢中だったので、私が部屋に入ったのに気づかなかった。

Sentence Analyzer

English Translation

My brother was so absorbed in reading that he did not notice me when I entered the room.

Furigana

兄(あに)は読書(どくしょ)に夢中(むちゅう)だったので、私(わたし)が部屋(へや)に入(はい)ったのに気(き)づかなかった。

Romanji

Ani wa dokusho ni muchū datta node, watashi ga heya ni haitta no ni kizukanakatta.

Words

兄 (あに)

elder brother; older brother

は (は)

topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis

読書 (どくしょ、とくしょ)

reading

に (に)

at (place, time); in; on; during; to (direction, state); toward; into; for (purpose); because of (reason); for; with; by; from; as (i.e. in the role of); per; in; for; a (e.g. "once a month"); and; in addition to; if; although

夢中 (むちゅう)

daze; (in a) trance; ecstasy; delirium; engrossment; within a (deep) dream

だ (だ)

be; is; indicates past or completed action; indicates light imperative

ので (ので、んで)

that being the case; because of ...; the reason is ....; given that...

私 (わたし、わたくし)

I; me; private affairs; personal matter; secrecy; selfishness

が (が)

indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and

部屋 (へや)

room; apartment; flat; pad; chamber; stable

入る (いる)

to get in; to go in; to come in; to flow into; to set; to set in

の (の)

indicates possessive; nominalizes verbs and adjectives; substitutes for "ga" in subordinate phrases; (at sentence-end, falling tone) indicates a confident conclusion; (at sentence-end) indicates emotional emphasis; (at sentence-end, rising tone) indicates question

気付く (きづく)

to notice; to recognize; to recognise; to become aware of; to perceive; to realize; to realise