攻克堡垒(Day1-10)Day 8
1. racial
The racial discrimination issue was a political hot potato in the United States in the past.
【译 文】过去，在美国种族歧视问题在政治上是个烫手的山芋。
【四级词义】adj. 人种的'，种族的
【巧 记】race(种族;人种)rac + ial(形容词后缀)
【真题例句】racial pride 种族优越感
2. radiation
Experts know that portable devices emit radiation, which affects those wavelengths which aircraft use for navigation and communication.(1999.6)
【全真测试】A. 阳光 B. 放射线 C. 激光
【译 文】专家了解到这种可便携的装置会辐射射线，这种射线会影响飞行器用来导航和和联络的波长。
【四级词义】n. 放射线，放射物，辐射
【猜 一 猜】① radical ② radiance ③ radiant
【Key】① adj. 放射的，辐射的 ② n. 发光，光辉 ③ adj. 发热的
3. range
Studies over a range of illnesses, from depression to heart disease，reveal that the presence of social support helps people fend off(挡开)illness, and the absence of such support makes poor health more likely.(2000.6)
学识谷
