n And these are known as anions. It has the n, which might conjure up negative, or anion and minus both have five letters.

这些就是负离子，有，能让我们想起，负，这个字，或者负离子和负号都是5个字母。

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And during the siege there were sixty-five balloon flights carrying two and a half million letters, weighing a grand total of 10,000 kilograms, so roughly about 20,000 pounds.

在巴黎被围期间,共放出了六十五个热气球,带走了多达两百五十万封信,合计重量约有一万公斤,也就是两万磅左右

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