VOA慢速英语:Scientists Look At Plant Products With An Eye To New Possibilities for Health

词汇讲解：

1. spice n. 香料, 调味品
例句：Ginger is a spice.
姜是调味品。

2. sharpen vt. 加重;加剧;使尖锐
例句：Cold weather sharpens the pain in my knee.
寒冷使我膝盖的疼痛加剧。

3. spicy adj. 有香料味的, 辛辣的
例句：Spicy smells wafted through the air.
辛辣的气味在空中飘荡。

4. tropical adj. 热带的; 炎热的
例句：He has bought some tropical fruits.
他买了一些热带水果。

5. involve vt. 需要,包含,意味着
例句：His work involves occasional journeys.
他的工作偶尔需要出差旅行。

6. warn v. 警告, 提醒; 告诫; 预先通知, 预告
例句：The weather station warned that a storm was coming.
气象台说将有暴风雨来临。

7. soften v. (使)变软, (使)变轻柔, (使)变温和
例句：His attitude has softened.
他的态度软了下来。

8. steak n.牛排
例句：I ate four steaks yesterday.
昨天我吃了四块牛排。

9. compare vt. 比较, 对照
例句：Compare this with that, and you will see which is better.
将这个与那个比较一下,你就会知道哪个比较好了。

10. lessen v. 减少(某事物)
例句：Eating a good diet significantly lessens the risk of heart disease.
良好的饮食习惯能大大减少患心脏病的机率。

11. moist adj. 潮湿的, 微湿的
例句：Strawberries grow best in a cool, moist climate.
草莓最适于在凉爽、潮湿的气候条件下生长。