喫煙は有害無益であるだろう。

喫煙は有害無益であるだろう。

Smoking will do more harm than good.

喫煙(きつえん)は有害(ゆうがい)無益(むえき)であるだろう。

Kitsuen wa yūgai mueki de aru darou.

喫煙 (きつえん)

smoking

は (は)

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

有害 (ゆうがい)

harmfulness

無益 (むえき)

useless; futile; vain

だ (だ)

be; is; indicates past or completed action; indicates light imperative

或 (ある)

a certain ...; some ...

Readings: キツ、の.む

Meanings: consume, eat, drink, smoke, receive (a blow)

Readings: エン、けむ.る、けむり、けむ.い

Meaning: smoke

Readings: ユウ、ウ、あ.る

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

Reading: ガイ

Meanings: harm, injury

Readings: ム、ブ、な.い

Meanings: nothingness, none, ain't, nothing, nil, not

Readings: エキ、ヤク、ま.す

Meanings: benefit, gain, profit, advantage