慢速英语:Trail Rides Kick off Houston Livestock Show and Rodeo

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词汇讲解：

1. comfortable adj.舒适的; 安逸的
例句：He was feeling very comfortable under this evidence of approval. 
这种赞许的表示使他觉得很称心。 

2. relax vt.（使）轻松; （使）松弛
例句：He stretched and flexed his knees to relax himself. 
他伸屈膝关节使自己放松一下。 

3. ceremony n.典礼，仪式; 礼仪
例句：All formalities were observed at the ceremony. 
庆典仪式遵循了所有的礼节。 

4. heritage n.遗产; 继承物
例句：It is the heritage of all human beings. 
这都是整个人类继承的东西 

5. barrel n.桶; 一桶之量; 圆筒
例句：The heavy oil was quoted at $ 17 per barrel. 
重油报价为每桶17美元。