例句與造句

1. Why those species - pairs shown positive association or correlation was that they had the similar biological characters and the similar eco - adaptive and segeration niche . why the species pairs shown negative association or correlation was that they had different ecological characters , different adaption and overlapping niche
   種對間負(fù)關(guān)聯(lián)或負(fù)相關(guān)，則是由于它們具有不同的生物學(xué)特性、對生境具有不同的生態(tài)適應(yīng)性和相互重疊的生態(tài)位所致。
2. It's difficult to find overlapping niche in a sentence. 用overlapping niche造句挺難的