この病気の原因については、ほとんどわかっていない。

Sentence Analyzer

English Translation

We know very little about the cause of this disease.

Furigana

この病気(びょうき)の原因(げんいん)については、ほとんどわかっていない。

Romanji

Kono byōki no gen'in nitsuite wa, hotondo wakatteinai.

Words

此の (この)

this (something or someone close to the speaker (including the speaker), or ideas expressed by the speaker)

病気 (びょうき)

illness; disease; sickness

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

原因 (げんいん)

cause; origin; source

に就いて (について)

concerning; regarding; per (e.g. 100 yen per person); for every

は (は)

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

殆ど (ほとんど)

mostly; nearly; practically; well-nigh; almost invariably; all but; just about; almost

分かる (わかる)

to understand; to comprehend; to grasp; to see; to get; to follow; to become clear; to be known; to be discovered; to be realized; to be realised; to be found out

Kanji

病

Readings: ビョウ、ヘイ、や.む、 -や.み、やまい

Meanings: ill, sick

気

Readings: キ、ケ、いき

Meanings: spirit, mind, air, atmosphere, mood

原

Readings: ゲン、はら

Meanings: meadow, original, primitive, field, plain, prairie, tundra, wilderness

因

Readings: イン、よ.る、ちな.む

Meanings: cause, factor, be associated with, depend on, be limited to