复数： forties

提示：点击例句中的单词，就可以看到词义解释

I knew him for more than forty years .

我认识他已经超过四十年了。

This was forty years ago .

这是四十年前的事了。

He started with them almost forty years ago .

他在那做了靠四十年了。

The longest snake on earth calls it quits at about forty feet .

地球上最长的蛇大约到四十英尺也就不长了。

Demand for food is expected to double over the next forty years .

据预测，在未来四十年中食物需求会增加一倍。