ボスは彼らを一日中働かせた。

Sentence Analyzer

ぼすは彼らを一日中働かせた。

English Translation

The boss made them work day and night.

Furigana

ボスは彼(かれ)らを一(いち)日中(にちちゅう)働(はたら)かせた。

Romanji

Bosu wa karera o ichi nichichū hatarakaseta.

Words

ボス (ボス)

boss

は (は)

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

彼ら (かれら)

they (usually male); them

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.

一 (いち)

one; best; first; foremost; beginning; start; bottom string (on a shamisen, etc.)

日中 (にっちゅう、ひなか)

daytime; during the day; Sino-Japanese

働かせる (はたらかせる)

to put someone to work; to make someone work; to use; to apply; to exert; to exercise (restraint, one's imagination, one's brain, etc.)