vulnerable

Compared meaning: easily hurt or affected (adjective).

比较义项：容易受到伤害、影响（形容词）。

• vulnerable 本词

  Emphasizes a lack of protection or defense that leaves someone open to harm; used for people, groups, or situations exposed to danger, injury, or emotional hurt, with or without naming the threat.

  强调缺乏保护或防御，使人容易受到伤害；可用于因暴露在危险、受伤或情感伤害中而处于弱势的人、群体或情境，说明具体原因与否均可。

  Newborn babies are extremely vulnerable and need constant care.

  新生儿非常脆弱，需要持续的照顾。

• susceptible

  Emphasizes an inherent tendency or predisposition to be affected by something specific, usually illness, infection, or influence, and is almost always followed by 'to plus a noun'.

  强调对某种具体事物（通常是疾病、感染或影响）具有天生的易感倾向，几乎总是后接“to+名词”。

  Young children are more susceptible to common colds in winter.

  冬天，幼儿更容易感染普通感冒。

Both words mean easily hurt or affected. Vulnerable stresses a lack of protection, leaving someone open to harm or danger, named or not. Susceptible stresses a natural tendency to be affected by something specific, like illness, and almost always takes 'to'.

这两个词都形容“容易受到伤害或影响”，语气相近，但侧重点不同：vulnerable 强调缺乏保护、暴露在危险或伤害之中，可单独使用；susceptible 强调对某种具体事物（如疾病、感染）具有天生的易感倾向，几乎总是接“to+名词”。这里不比较 vulnerable 在军事、策略语境中“易受攻击的”等其他义项。