He was thinking of little lakes deep in the woods, of the color of bulrushes, of the sounds of night and the chorus of frogs.

他正在想着密林深处小湖，香蒲色，声响和青蛙齐唱。

Even the sand contained evidence -- pollen from palm and fig trees, cattails, and other plants associated with wet areas.

就连沙子也含有证据：里面有花粉，来自棕榈树和无花果树、香蒲，以及与潮湿地区有关其他植物。

Cattail flash-train firefly females, for example, prefer faster flickers, while ignited firefly females select for longer light pulses.

例如，香蒲连闪萤雌性偏爱更快闪烁，而火萤雌性则青睐持续发光。

It was pleasant there, with reeds and bulrushes.

这是个不错地方，长满了青草和香蒲。

Narrator: Every month, participants turn nearly 30,000 pounds of Typha into bio-coal.

：个月，参与者都会将近 30,000 磅香蒲转化为生物煤。

The bio-coal is made by burning Typha in these outdoor kilns for six hours at a time.

生物煤是通过在这些户外窑炉中一次燃烧香蒲六个小时制成。

Typha coal, on the other hand, produces much less smoke.

另一方面，香蒲煤产生烟雾要少得多。

Typha can also be mixed with clay to make bricks for construction.

香蒲也可以与粘土混合制成建筑用砖。

Typha briquettes ignite faster and burn longer than wood.

香蒲煤球比木头燃烧得更快，燃烧时间更长。

In Senegal, Typha poses similar problems.

在塞内加尔，香蒲带来了类似问题。