ぱらっとquickly (turning pages, opening a letter, etc.), with a flick, casually, absentmindedly, lightly (falling rain, leaves, etc.), sprinkling over (e.g. salt), sparsely (scattered), here and there

田舎(いなか)には家(いえ)がぱらっと点在(てんざい)している。

Houses are sparsely scattered here and there in the countryside. {quickly (turning pages, opening a letter, etc.), with a flick, casually, absentmindedly, lightly (falling rain, leaves, etc.), sprinkling over (e.g. salt), sparsely (scattered), here and there}

ご飯(はん)の上(うえ)にふりかけをぱらっと振(ふ)りかけました。

I casually sprinkled furikake over the rice. {quickly (turning pages, opening a letter, etc.), with a flick, casually, absentmindedly, lightly (falling rain, leaves, etc.), sprinkling over (e.g. salt), sparsely (scattered), here and there}

レアに焼(や)いた肉(にく)に塩(しお)と胡椒(こしょう)をぱらっとかけて食(た)べました。

I ate the meat cooked rare, casually sprinkling salt and pepper over it. {quickly (turning pages, opening a letter, etc.), with a flick, casually, absentmindedly, lightly (falling rain, leaves, etc.), sprinkling over (e.g. salt), sparsely (scattered), here and there}

雨(あめ)がぱらっと降(ふ)ってきたと思(おも)ったら、ザーザー降(ふ)り出(だ)しました。

Just when I thought the rain started to fall lightly, it suddenly began to pour down heavily. {quickly (turning pages, opening a letter, etc.), with a flick, casually, absentmindedly, lightly (falling rain, leaves, etc.), sprinkling over (e.g. salt), sparsely (scattered), here and there}

こんな辺鄙(へんぴ)な場所(ばしょ)にもぱらっと家(か)が建(た)っていることに衝撃(しょうげき)を受(う)けました。

I was shocked to see houses casually built even in such remote places. {quickly (turning pages, opening a letter, etc.), with a flick, casually, absentmindedly, lightly (falling rain, leaves, etc.), sprinkling over (e.g. salt), sparsely (scattered), here and there}