音标: 英 [ˈleɪdɪbɜ:d] 美 [ˈleɪdɪbɜ:rd]
1. If one of them is attacked by a predator, like a ladybird, for example, it will send a message, an alarm pheromone, out into the air, and that basically tells all of the other ones that they need to escape.
如果其中一只被捕食者袭击 比如瓢虫 它会将一种警告信息素 释放到空气中 那主要是在告诉所有其他蚜虫 她们需要逃离