billion-dollar grass

短语

䅟；䅟子

词形变化

billion-dollar grasses 复数

释义与例句

n.
  1. 1.

    Any of the genus Echinochloa of barnyard grass, widely considered harmful weeds.

    可数 不可数

词汇关系

名词

同义词 1

Japanese millet

上位词 1

millet

词源

Probably so-called because of the adverse impact of Echinochloa weeds on yields rice and other crops.

来源：wiktionary