英语听力：自然百科 大堡礁 堡礁内外(10)（在线收听）

There are just too many turtles for the space available.

海龟数量太多，但岛上空间有限。

She spends much of the night heaving her bulk back and forth across the sand, searching for a vacant nest site.

这位妈妈花了大半个晚上拖着沉重的身子在沙滩上来来回回，寻找空地做巢。

Such is their enthusiasm for digging neighbors are in real danger of being buried alive.

它们如此忘情投入地挖洞使得相互之间都处于被活埋的危险当中。

Some even dig out eggs that have already been laid.

有些身子把已经埋好的蛋挖出来。

After several hours of searching, the female finds a suitable place where the sand is still moist.

寻找了数小时后，这只雌龟找到了合适的地方，这里的沙子还是湿湿的。

Her flippers may be a liability for moving on land, but they come into their own.

她的四肢也许不适合在陆地上行进，但现在它们正发挥出真正的作用。

Using her front flippers, she first digs a protective hollow for herself.

利用自己的前掌，这只龟妈妈先挖了个小坑保护好自己。

Then with her back flippers, she delicately scoops out a deep pit.

紧接着又用后掌，精心的挖出个深坑。