ブライアンはドアを開けたままにしておいた。（開けておきたかった。）。
Sentence Analyzer
English Translation
Brian kept the door open.
Furigana
ブライアンはドアを開 けたままにしておいた。（開 けておきたかった。）。
Romanji
Buraian wa doa o aketa mamani shiteoita. aketeokitakatta..
Words
は
(は)
topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis
ドア
(ドア)
door (Western-style)
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.
開ける
(はだける)
to open; to bare; to expose; to stretch
儘に
(ままに)
as (e.g. "do as one is told", "as we age we gain wisdom"); wherever (e.g. "wherever my fancy took me")
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
Kanji
Readings: カイ、 ひら.く、 ひら.き、 -びら.き、 ひら.ける、 あ.く、 あ.ける
Meanings: open, unfold, unseal