您要查找的是不是：
- Appraise the ecological environment effect objectively and correct that external species such as water hyacinth brings. 任何外来物种均是"双刃剑",其带来的生态环境效应有利有弊。
- He is just listening in external of that room. 他正在那房间的外面留神听着。
- This news program only covers external events. 这一新闻节目只报道国外消息。
- Do wolves belong to the canine species? 狼是犬科动物吗？
- 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。
- She sets great store by external politeness. 她很注重表面的虚礼。
- 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。
- Our external trade has expanded during recent years. 我国的对外贸易近几年来有所发展。
- He judge people by mere external clothes rather than internal character. 他判断人只靠着外表的衣服而不是内在的品格。
- This species of flower flourishes in a warm climate. 这种花在温暖的气候中长得茂盛。
- The metal or plastic external structure of a motor vehicle. 车身机动车的金属和塑料的外部结构
- An endangered species; an endangered culture. 濒临绝种的生物种类; 濒临绝传的文化
- External torques arise from outside the system. 外转矩是由系统外部生产的。
- Fluid motion caused by an external force such as gravity. 流体运动由重力等外力引起的流体运动
- This species of butterfly is widely distributed over our country. 这种蝴蝶在我国分布很广。
