1·The black market trade in exotic carnivorous plants is so vigorous now that botanists are keeping the location of some rare species a secret.
现在，外来食肉植物的黑市交易非常活跃，以至于植物学家一直对某些稀有物种的位置三缄其口。
2·Only a few rare species are known to produce the toxic trichothecenes.
只有一些稀有物种产生有毒的单端孢霉烯。
3·They are investigating the autecology and natural history of rare species.
他们正在调查稀有物种的起源和自然史。
4·So it's unlikely they're going to feed on any rare species.
因此，它们不太可能对这些珍稀物种下手。
5·I felt like an ornithologist looking for a rare species.
我觉得自己好像是一个正在寻找稀有物种的鸟类学家。
6·China's record of protecting its rare species has been desultory.
中国在保护其珍惜物种方面有着令人失望的记录。
7·So, it is everybody's responsibility to protect rare species.
所以，每个人都有责任保护稀有物种。
8·Unfortunately, such a rare species is now faced with the danger of being extinct.
不幸的是，这种稀有物种现在正频临灭绝的危险。
9·Unfortunately, such a rare species is now faced with the danger of being extinct.
不幸的是，这种稀有物种此刻正频临灭绝的危险。
10·With luck, scientists can help the rare species avoid their own journey to Ka Lae.
幸运的是，科学家可以帮助珍稀物种避免自己旅途到达卡莱城。