insulate
词根词缀：
insular adj. 岛国的；偏狭的
insul 岛屿 + ar …的 → 岛国的；偏狭的
insulate v. 隔离；使绝缘
insul 岛屿 + ate 做，造成，使… → 像岛屿般与世隔绝 → 隔离
insulin n. 胰岛素
insul 岛屿 + in …素 → 胰岛素
peninsula n. 半岛
pen 近似 + insul 岛屿 + a → 似岛 → 半岛
数据来源：新东方英语词汇速记大全
相关例句：
Don't insulate your mother from everyday difficulties even if she is old.
不要使你母亲经常脱离日常的困难，尽管她已经老了。
Decomposition to plane circuitry's pin, then aborative go along transmit and insulate inspect, eliminate circuitry malfunction.
通过对机上线路的插头进行分解，进行导通和绝缘检测，排除了机上线路故障；
A water-resistant adhesive tape used to insulate exposed electrical conductors.
包裹在裸露的电导体外面，使之绝缘的抗水的胶带。
Wall vines and ground cover insulate against summer heat and reduce reflected radiation.
墙上的藤蔓和地上辅盖的绝缘层，可以对抗夏季的曝晒和反射出来的热副射。
They must, instead, try to "insulate the real economy from consequences of financial instability".
相反，他们必须设法“将金融不稳定的后果与实体经济隔离开来”。
They have found a way to insulate themselves against the cost of inflation.
他们找到了使自己免受通货膨胀影响的办法。