For example, if a child falls into a well and struggles to get out, he or she may develop a fear of wells, enclosed spaces (claustrophobia) or of water (hydrophobia).

• 例如：当一个小孩跌入了水井，最后挣扎爬出来，那么他或她就可能演变成害怕水井、封闭的空间(幽闭恐怖症）或水(恐水病)。