n.鸡距，避霜花...

cockspur的音标：cockspur的英式发音音标为：['kɒkspɜ:]cockspur的美式发音音标为：['kɒkˌspɜ]...

Green bristlegrass was dominant species, and fat hen and cockspur grass were subdominant species.研究区内有野生草本植物25种,其中优势种群是狗尾草种群, 亚优势种群为灰菜、稗草种群....