彼は一日中、いつも忙しい。

彼は一日中、いつも忙しい。

He's always on the go, from morning to night.

彼(かれ)は一(いち)日中(にちちゅう)、いつも忙(いそが)しい。

Kare wa ichi nichichū, itsumo isogashii.

彼 (かれ)

he; him; his; boyfriend

は (は)

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

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

何時も (いつも)

always; usually; every time; never

忙しい (いそがしい、せわしい)

busy; hectic; occupied; engaged

Readings: ヒ、かれ、かの、か.の

Meanings: he, that, the

Readings: イチ、イツ、ひと-、ひと.つ

Meanings: one, one radical (no.1)

Readings: ニチ、ジツ、ひ、 -び、 -か

Meanings: day, sun, Japan, counter for days

Readings: チュウ、なか、うち、あた.る

Meanings: in, inside, middle, mean, center

Readings: ボウ、モウ、いそが.しい、せわ.しい、おそ.れる、うれえるさま

Meanings: busy, occupied, restless