leaf英语的复数

我现在偶然间也发现了同样的问题，很多地方都使用了leafs 不清楚是否表达的是复数的意思？特别是我的一个德国同事对leafs作为leaf复数的使用引起了我的高度重视 那到底是错误呢 还是leafs的用法也是存在的呢？不过可以可以肯定的是leaves一定是leaf的复数

leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves leaves 这个还要问 晕