性外激素；信息激素
pheromones — third person singular of pheromone
先理解核心含义，再看它在真实句子里的用法。
性外激素；信息激素
a chemical substance secreted externally by some animals that influences the physiology or behavior of other animals of the same species
一般现在时
The insect pheromones to attract mates.
这种昆虫分泌信息素来吸引配偶。
一般过去时
The queen bee pheromoned the hive to maintain order.
蜂王释放信息素来维持蜂巢的秩序。
现在完成时
Scientists have pheromoned the area to study ant behavior.
科学家们已经在该区域释放信息素以研究蚂蚁的行为。
规则动词，过去式和过去分词加-ed，现在分词去e加-ing。
The queen bee pheromones to coordinate the hive's activities.
蜂王释放信息素来协调蜂巢的活动。
用法提示：这里'pheromones'是动词第三人称单数形式，表示分泌或释放信息素。
Ants pheromone a trail from the nest to the food source.
蚂蚁从巢穴到食物源释放信息素标记路径。
用法提示：此处'pheromone'是动词原形，表示释放信息素。
The male moth pheromoned a chemical signal to attract a mate.
雄蛾释放化学信息素来吸引配偶。
用法提示：这里'pheromoned'是动词过去式，表示释放了信息素。
Pheromone 是外分泌的化学物质，影响同种其他个体的行为；hormone 是内分泌的，在体内调节生理。
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