您要查找的是不是：
- Do wolves belong to the canine species? 狼是犬科动物吗？
- Many prisoners, on being freed, regress to a life of crime. 许多囚犯，一旦获释，仍去犯罪。
- We should do our best to save endangered species. 我们应该竭尽全力挽救濒于灭绝的生物。
- This rare bird has become an endangered species. 这种珍禽已成为濒临灭绝的物种。
- He was wearing a strange species of hat. 他戴着一种奇怪的帽子。
- There are many species of chrysanthemum. 菊花品种很多。
- Today the survival of our species is threatened. 今天人类的生存受到了威胁。
- The giant panda has become an endangered species. 大熊猫已成了一种濒临灭绝的动物。
- Unlike most other bats, this species is diurnal. 这种蝙蝠与大多数蝙蝠不同，是在日间活动的。
- regressive species 退化种
- This species of flower flourishes in a warm climate. 这种花在温暖的气候中长得茂盛。
- The policy has been condemned as a regressive step. 这项政策被认为是一种倒退而受到谴责。
- Many of the symptoms will regress or disappear. 许多症状将减轻或消失。
- An endangered species; an endangered culture. 濒临绝种的生物种类; 濒临绝传的文化
- The attempt leads to an infinite regress. 这种作法会导致无穷倒退。
- To regress after partial recovery from illness. 复发:疾病部分康复以后再次退化。
- Regress to "natural person "state. 回归“自然人”状态。
- Many men, when very angry, regress to their childhood and show their bad temper by shouting and stamping their feet. 很多人，盛怒之下又退回到孩提时代，边大喊大叫边跺脚地发脾气。
- This species of butterfly is widely distributed over our country. 这种蝴蝶在我国分布很广。
- At the moment of victory, we regress. 在胜利的时刻，我们后退了。
