提示：点击例句中的单词，就可以看到词义解释

Seventy-five meters is the longest distance tested so far .

至今测试中最长有效的距离为75米。

Some countries have already started implementing smart meters .

有些国家已经开始使用智能表了。

Its wing spread is 2 meters .

它的翅膀展开有两米。

The depth is 6 meters .

这种深度，是6米。

I want two meters of reversible khaki .

我想要两米双面卡其布。