In Greece, rhododendrons and oleander bloom only in springtime, when they are the predominant sources of nectar.
在希腊，杜鹃花和夹竹桃只在春天开花，那时它们是花蜜的主要来源。
3
The archaeological evidence clearly indicates, though, that Teotihuacán was the center that did arise as the predominant force in the area by the first century A.D.