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1·And sawdust and filbert husks to make red wine more astringent.

锯末和榛子壳使红酒口感更加涩。

2·The sweet and sour vinegar astringent but not bitter strong spicy wine.

而醋有酸甜涩，却没有酒的香辣苦烈。

3·It is also regarded as the Life of Wine, but tastes sour and astringent.

单宁被誉为“葡萄酒的生命”，给人一种葡萄酒特有的酸涩的感觉。

4·Certain kinds of red wine would usually taste a little astringent.

某些红酒通常喝起来会有点涩涩的。