Ecological system
[法] 生态系统
🧩 词语组成解析
ecological
[ˌekə'lɔdʒikəl]
adj. 生态（学）的;
🗣️ 情景例句
whom I think you've met once or twice before.
我想你以前见过他一两次面。
The prerequisite for Chinese Lit is Freshman Lit and Comp.
若要从事中国文学，必须在一年级修文学与作文。
No. I've never been to that farm before. What kinds of animals have they got?
不，我以前从来没有去过那个农场。他们有哪些种类的动物？