謝るぐらいの礼儀は彼女も心得ていた。

Sentence Analyzer

謝る ぐらい 礼儀 彼女 心得ていた

English Translation

She had the decency to apologize.

Furigana

(あやま)るぐらいの礼儀(れいぎ)彼女(かのじょ)心得(こころえ)ていた。

Romanji

Ayamaru gurai no reigi wa kanojo mo kokoroeteita.

Words

謝る (あやまる)
to apologize; to apologise
くらい (くらい、ぐらい)
approximately; about; around; or so; to (about) the extent that; (almost) enough that; so ... that ...; at least; as ... as ...; like
()
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
礼儀 (れいぎ)
manners; courtesy; etiquette
()
topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis
彼女 (かのじょ)
she; her; her; girlfriend; sweetheart
()
too; also; in addition; as well; (not) either (in a negative sentence); both A and B; A as well as B; neither A nor B (in a negative sentence); even; as much as; as many as; as far as; as long as; no less than; no fewer than; even if; even though; although; in spite of; further; more; again; another; the other
心得る (こころえる)
to know; to understand; to be aware of; to regard as; to take for; to consent; to agree

Kanji

Readings: シャ、 あやま.る
Meanings: apologize, thank, refuse
Readings: レイ、 ライ
Meanings: salute, bow, ceremony, thanks, remuneration
Reading: 
Meanings: ceremony, rule, affair, case, a matter
Readings: ヒ、 かれ、 かの、 か.の
Meanings: he, that, the
Readings: ジョ、 ニョ、 ニョウ、 おんな、 め
Meanings: woman, female
Readings: シン、 こころ、 -ごころ
Meanings: heart, mind, spirit, heart radical (no. 61)
Readings: トク、 え.る、 う.る
Meanings: gain, get, find, earn, acquire, can, may, able to, profit, advantage, benefit