勝手に水質検査を行ったあげく浄水器を売りつけるなど、悪質な訪問販売が多発しています。

tbd

There are frequent instances of malicious door-to-door selling, such as pushing water purifiers on people after carrying out water quality tests without permission.

いいのよ。いままで実のないブランド品を高く売りつけて暴利をむさぼってきたんだから。今後せいぜい良心的な商売にはげめばいいんだわ。

tbd

Never mind that. After all, up till now he's been stuffing himself on huge profits, selling brand-name goods of no real worth at high prices. From now on, he can just try his best at honest trade.

セールスマンはその品物を法外な値段で売りつけた。

tbd

The salesman sold the article at an unreasonable price.