Let's just put alcohol aside for now, and try to cut down on your smoking a little.
You should try to cut back on the number of cigarettes you smoke first, and then deal with the alcohol later.
ーLet's just put alcohol aside for now, and try to cut down on your smoking a little.
「お酒はともかく、タバコの量を少し減らしなよ」
to put alcohol aside で「お酒はともかく」
to cut down on ... で「(タバコなどの）量を減らす」
ーYou should try to cut back on the number of cigarettes you smoke first, and then deal with the alcohol later.
「まずはタバコの量を減らしたほうがいいよ。それからお酒の方を対処したらいいよ」
to cut back on で「量を減らす」
to deal with で「（問題に）対処する・取り組む」
ご参考まで！
Putting alcohol aside, you really should cut down on smoking a bit.
**Putting alcohol aside, you really should cut down on smoking a bit.**
**I’m not talking about the drinking, but you really need to smoke less.**
「酒はともかく、タバコの量は少し減らすべきだ」は、**酒はさておき（＝ともかく）**、タバコに関しては少し減らしたほうがいい（＝should cut down on smoking）という2つの対比的な内容を含んでいます。
カナダ 
アメリカ合衆国 
