Why is vinegar so effective at cleaning?

Pre-reading questions: I will read each question. Then, please answer them. 講師がそれぞれの質問を読むので答えましょう。 Have you ever used vinegar as a cleaning agent? Do you find vinegar effective in removing tough stains? Vocabulary: I will read the words, meanings, and sample sentences. Then, repeat after me. 単語、意味、例文を読みます。講師に続いて音読しましょう。 take up /teyk uhp/ [phrasal verb] – to fill an amount of space or time My new hobby of painting has taken up most of my free time lately. hide /hahyd/ [verb] – to put something or someone in a place where that thing or person cannot be seen or found, or to put yourself somewhere where you cannot be seen or found My little…
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