light up点烟, 开始吸烟

例句：He struck a match and lit up.
      他划着一根火柴, 点火抽烟。

2.So the researchers came to the conclusion it looks like that ad campaign worked.

come to a conclusion得出结论,完结

例句：I find it difficult to come to a conclusion.
      我觉得难下结论。

3.And here's what they had to say, they say - R.J. Reynolds adheres to numerous restrictions on how it markets its tobacco products and does not take any action to target youth.

adhere to遵循, 依附; 坚持

例句：They failed to adhere to our original agreement.
       他们未能遵守我们原定的协议。
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