The man spoke four languages so fluently he was mistaken for a native in each. But he was not a linguist. He was a polyglot. "One is an academic, one is a Swiss waiter," he remarked.
Saturday, February 22, 2020
l'émail - enamel
These bacteria digest sugar and form an acid which attacks tooth enamel.
Ces bactéries digèrent le sucre en formant un
acide qui attaque l'émail des dents.
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