您要查找的是不是：
- The news comes from a reliable source. 这消息来自可靠的来源。
- Do wolves belong to the canine species? 狼是犬科动物吗？
- My wages are the principal source of my income. 薪金是我收入的主要来源。
- 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。
- Solar energy is a new kind of source of energy. 太阳能是一种新型能源。
- 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。
- The sun is the ultimate source of energy. 太阳是能量的最基本来源。
- A source of irritation or annoyance. 令人生气的事或者引起烦恼之事
- The groundwork or source of something. 基础，根源某事物的基础工作或根源
- Where is the source of the Rhine? 莱茵河发源于何处？
- 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。
- He's been a source of discord and worry. 他成为不和和烦恼的根源。
- 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。
- A source of harassment, annoyance, or pain. 使人痛苦的东西骚扰，烦恼或痛苦的来源
- Is the water polluted at source or further downstream? 河水是在源头还是在流出之後受到污染的？
- Hard work is the ultimate source of success. 努力工作是成功之本。
- The proof came from a plenteous source. 证据来自丰富的渠道。
