noun 下载 🔗分享 虫害,侵扰. The presence of a large number of pest organisms in an area or field, on the surface of a host or anything that might contact a host, or in the soil. Examples : "The garden had a serious infestation of aphids, making it impossible to enjoy the vegetables. " 花园里蚜虫成灾,严重侵扰了蔬菜,让人根本没法享用它们。 organism environment agriculture biology nature insect animal plant 与AI对话词汇游戏阅读练习