passive
词根词缀：
electropathy n. 电疗法
electro 电 + pathy 痛苦；病 → 用电治病 → 电疗法
pathology n. 病理学
path 痛苦；病 + ology …学 → 病的学科 → 病理学
pathos n. 悲哀
path 痛苦；病 + os → 悲哀
patient n. 病人
pati 痛苦；病 + ent 表人 → 病人
psychopath n. 精神病人
psycho 精神 + path 痛苦；病 → 患有精神病 → 精神病人
数据来源：新东方英语词汇速记大全
相关例句：
We mustn't be passive.
咱们不能采取消极的态度。
I mean you used a passive sentence.
我的意思是你刚才说了一个被动句。
They made it clear that they would only exercise passive resistance in the event of a military takeover.
他们声明一旦发生军事接管，他们只会采取非暴力抵抗。
It's a sad truth that children are the biggest victims of passive smoking.
不幸的事实是，儿童是被动吸烟的最大受害者。
Observability analysis is the basis and prime task in a passive location and tracking system.
可观测性分析是无源定位与跟踪系统的前提和基础。
Even passive acceptance of the regime was a kind of collaboration.
即使被动接受该政权也是一种通敌行为。