If you are susceptible to something or someone, you are very likely to be influenced by them.
Young people are the most susceptible to advertisements.
年轻人最容易受广告影响。
James was extremely susceptible to flattery.
詹姆斯非常容易受奉承话的影响。
If you are susceptible to a disease or injury, you are very likely to be affected by it.
Walking with weights makes the shoulders very susceptible to injury.
负重行走使肩膀很容易受伤。