Such promises, I think, come into being mainly for two reasons.
我认为之所以有这样的承诺原因有二。
According to this change, I am convinced that there will be less and less tobacco consumption in years to come, mainly for two reasons.
根据这个变化，我相信在将来，烟草的消费将会越来越少，这主要有两个原因。
According to this change, I am convinced that there will be less and less tobacco consumption in years to come, mainly for two reasons.
根据这个变化，我相信在将来，烟草的消费将会越来越少，这主要有两个原因。
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