彼らは幼児の死亡率の低さは医学の進歩のゆえと考えた。

Sentence Analyzer

English Translation

They attributed the low death rate of infants to the progress of medicine.

Furigana

彼(かれ)らは幼児(ようじ)の死亡率(しぼうりつ)の低(ひく)さは医学(いがく)の進歩(しんぽ)のゆえと考(かんが)えた。

Romanji

Karera wa yōji no shibōritsu no hikusa wa igaku no shinpo no yue to kangaeta.

Words

彼ら (かれら)

they (usually male); them

は (は)

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

幼児 (ようじ)

infant; baby; child; child over 1 but not yet of school age

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

死亡率 (しぼうりつ)

death rate; mortality

低い (ひくい)

low (rank, degree, value, content, quality, etc.); low (position); close to the ground; short (height); deep (voice); in a low key; low (volume)

医学 (いがく)

medical science; medicine

進歩 (しんぽ)

progress; advance; improvement; development

故 (ゆえ)

reason; cause; circumstances

と (と)

if; when; and; with; particle used for quoting (with speech, thoughts, etc.); quoting particle; promoted pawn; indicates question (sentence end)

考える (かんがえる)

to think about; to take into consideration; to ponder; to reflect; to try to come at a conclusion; to think over (something); to intend; to decide (to do); to plan; to come up with; to devise; to scheme; to predict; to anticipate; to expect; to suspect; to doubt; to consider (somebody to be something); to look on