pair-bond
verb [ I ] biology specialized (also pair bond) uk/ˈpeəˌbɒnd/ us/ˈperˌbɑːnd/
形成配偶关系
to form a close relationship with another person or animal
A hormone called vasopressin, which is active in the brain, leads some voles to stay pair-bonded for life. 一种叫做血管加压素的荷尔蒙活跃于大脑中，会导致一些田鼠终生保持配对关系。
Many coastal birds are now getting ready to pair bond, court, and nest.
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- In some animals that don't have strong social bonds, certain kinds of drugs can make them more interested in pair-bonding with their mates.
pair-bond
noun [ C ] biology specialized (also pair bond) uk/ˈpeəˌbɒnd/ us/ˈperˌbɑːnd/
配偶关系
a close relationship between one person and another, or one animal and another
Some researchers maintain that the pair-bond arose soon after the human line diverged from other primates.
Humans form fairly stable pair bonds but they are not unbreakable. 人类形成相当稳定的配偶关系，但并不是牢不可破的。
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- Most people who have the opportunity to form a pair-bond will do so at some time in their life.
- Male and female swans have permanent pair bonds and they both play equally important roles in raising their young.
- Breaking a long-term pair bond typically lowers the chances of nesting success.