a excellent meal: optimum - co

controversial

CONTROVERSIAL  争论

polish 

optimum      adj. 最优的，最佳

  optimism        n.乐观，

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passionate  passionate    adj.热情的，

although the weather today was  cold and blustery ,  those  workes  still  had  their  job  done.

mediocre  平庸的，普通的

mediocre 

geologist  have made a  major  breakthrough  recently.

withdraw  撤回，拿走

exact  diagnosis  准确的诊断

gamble    gamble  v.冒风险，n.赌博

he doesn' t  drink  or  gamble any more.

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vapor    n.烟雾，水蒸气

vague    adj.模糊的，不明确的

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the  experience gave  him  a  different perspective on life.   

perspective

playing  sports  regulary  can  strenghten  your  immune system.

natural ingredient          cream