Hot weather multiplied the bacteria in the food rapidly.炎热的天气使食品中的细菌迅速繁殖。Hot weather multiplys the bacteria in milk rapidly.炎热的天气使牛奶中的细菌迅速繁殖。In warm weather these germs multiply rapidly.在温暖的天气里这些细菌会迅速繁殖。These creatures can multiply quickly.这些动物能迅速繁殖。