Even when endangered populations recover, it has proved difficult to reduce or remove CITES protection.

即使濒危物种数量恢复，降低或者去除CITES的保护措施也十分困难。

youdao

In five of them, the rate at which fish are being taken out of the sea has dropped to a level that should let the populations recover.

在其中的五个地区，海洋鱼类被捕杀率已经降低到允许鱼类重新繁殖的水平。

youdao

But the good news is we have also found that tiger populations can recover.

不过好消息是我们也发现老虎的种群数量是可以恢复的。

youdao

In five of them, the rate at which fish are being taken out of the sea has dropped to a level that should let the populations recover.

VOA: special.2009.09.08

After the international trade in ivory was banned in 1989, global demand dwindled and elephant populations began to recover.

BBC: Kenya seizes smuggled ivory in Mombasa port

The Eurasian lynx has disappeared from much of its original habitat and where populations are starting to recover, conflict with people remains a major stumbling block.

CNN: Group mounts image makeover for endangered carnivores

Nevertheless, conservation groups maintain that the energy crisis does not dim their current proposal to remove the four Lower Snake River dams in order to recover endangered salmon populations.

CNN: Energy crisis affects Snake River dam proposal