Often, it tends to happen when an infectious person meets a susceptible person, allowing the pathogen to transmit between them.

通常，当一个感染者遇到一个易感者，让病原体在他们之间传播时，就会发生这种情况。

The edges of her conduct were so very clear-cut that for susceptible persons it sometimes had a knife-like effect.

她行为的边缘非常清晰， 以至于对于易受影响的人来说， 它有时会产生刀子般的效果。

Arthur paused in surprise. Susceptible persons are more affected by a change of tone than by unexpected words, and Arthur had the susceptibility of a nature at once affectionate and vain.

亚瑟惊讶地停了下来。易感的人更容易受到语气变化的影响，而不是意想不到的话语，而亚瑟天生易感，既深情又自负。