このオファーは５日間有効です。

このオファーは５日間有効です。

This offer is open for five days.

このオファーは５日間(にちかん)有効(ゆうこう)です。

Kono ofuxa- wa go nichikan yūkō desu.

此の (この)

this (something or someone close to the speaker (including the speaker), or ideas expressed by the speaker)

オファー (オファー、オッファー)

offer

は (は)

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

五 (ご、いつ、い)

five

日間 (ひあい)

time; days; daily interest rate

有効 (ゆうこう)

validity; legality; availability; effectiveness

です (です)

be; is

Readings: ニチ、ジツ、ひ、 -び、 -か

Meanings: day, sun, Japan, counter for days

Readings: カン、ケン、あいだ、ま、あい

Meanings: interval, space

Readings: ユウ、ウ、あ.る

Meanings: possess, have, exist, happen, occur, approx

Readings: コウ、き.く、ききめ、なら.う

Meanings: merit, efficacy, efficiency, benefit