1.activity n.活动
Volcanic activity has created thermal springs and boiling mud pools.
火山活动产生了温泉和沸腾的泥浆池。
2.ecology n. 生态学
Global ecological efforts can easily be at odds with local ecologies.
全球性生态保护工作很可能会和地方生态系统存在矛盾。
3.problematic adj.有疑问的
This would be problematic for shareholder-owned exchanges.
这对股东拥有的交易所是个问题。
4.species n.物种
There are several thousand species of trees here.
这里有几千种树。
5.We may just run out of species to be transported, because at some point, all species may have been transported already.
run out of 用完
He has run out of food; his children are hungry.
他家揭不开锅了,孩子们都等着吃饭。
If we're not careful, we're going to run out of juice.
如果我们不小心,我们将会耗尽汽油。
6.We may just run out of species to be transported, because at some point, all species may have been transported already.
at some point 某一刻;某种程度
We're all going to die at some point.
我们都将在某个时间死去。
The emotions will surface at some point in life.
各种情绪都会在生活中的某个时刻流露出来。












