彼は古代史の分野で突っ込んだ研究をしている。

Sentence Analyzer

English Translation

He's doing in-depth research on ancient history.

Furigana

彼(かれ)は古代史(こだいし)の分野(ぶんや)で突(つ)っ込(こ)んだ研究(けんきゅう)をしている。

Romanji

Kare wa kodaishi no bun'ya de tsukkonda kenkyū o shiteiru.

Words

彼 (かれ)

he; him; his; boyfriend

は (は)

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

古代史 (こだいし)

ancient history

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

分野 (ぶんや)

field; sphere; realm; division; branch

で (で、にて)

indicates location of action; at; in; indicates time of action; indicates means of action; cause of effect; by; and then; so; indicates continuing action; indicates certainty, emphasis, etc.

突っ込む (つっこむ)

to thrust (something) into (something); to cram; to plunge into; to go into deeply; to get involved with; to meddle; to poke one's nose into; to riposte; to retort; to quip

研究 (けんきゅう)

study; research; investigation

を (を)

indicates direct object of action; indicates subject of causative expression; indicates an area traversed; indicates time (period) over which action takes place; indicates point of departure or separation of action; indicates object of desire, like, hate, etc.

為る (する)

to do; to cause to become; to make (into); to turn (into); to serve as; to act as; to work as; to wear (clothes, a facial expression, etc.); to judge as being; to view as being; to think of as; to treat as; to use as; to decide on; to choose; to be sensed (of a smell, noise, etc.); to be (in a state, condition, etc.); to be worth; to cost; to pass (of time); to elapse; verbalizing suffix (applies to nouns noted in this dictionary with the part of speech "vs"); creates a humble verb (after a noun prefixed with "o" or "go"); to be just about to; to be just starting to; to try to; to attempt to