手早い答え
preço は品物の価格、conta は支払う合計や口座です。
確実な見分け方は、英語から訳す前に、その単語の働きを見きわめることです。
それぞれの単語の働き
conta
bill or account
Use conta for an amount to pay after service, or an account with a business or bank.
preço
price
Use preço for the stated cost of a product or service.
選び方
- conta: Choose conta if the sentence points to an amount to pay after service, or an account with a business or bank.
- preço: Choose preço if the sentence points to the stated cost of a product or service.
例文
A conta do restaurante chegou.
The restaurant bill arrived.
Qual é o preço deste livro?
What is the price of this book?
よくある落とし穴
Before ordering, you ask the preço. After eating, you ask for the conta.
文脈の中で練習する
自分の実生活から文を一つ選び、二回書いてみましょう。一度はcontaで、もう一度はpreçoで。どちらも成り立ちそうなら、意味の違いを言葉にしてみましょう。