| 釋義 |
ecosystem 構(gòu)詞法3100 全國卷頻次：3 教材出處：譯林版必修B3U1 /?i?k???s?st?m/ n. ecosystems 2 生態(tài)系統(tǒng) 高考真題原句提選：The African elephant, the largest land animal remaining on earth, is of great importance to African ecosystem.非洲象是地球上現(xiàn)存最大的陸地動物，對非洲的生態(tài)系統(tǒng)非常重要。Prevention is key, scientists says because once ecosystems pass their tipping point（臨界點）, it is remarkably difficult for them to return. 科學(xué)家們說，預(yù)防是關(guān)鍵，因為一旦生態(tài)系統(tǒng)過了臨界點，它們就很難恢復(fù)。 |