noun 下载 🔗分享 虫害,侵扰,滋生。 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 heavy rains led to infestations of mosquitoes in many gardens. " 暴雨导致许多花园里蚊虫大量滋生。 organism biology environment nature agriculture insect animal plant ecology 与AI对话词汇游戏阅读练习