Many times their immune systems are severely compromised from the cancer medications and treatment. Even a slight error or alteration of their medication could have a devastating, negative effect.

癌症病人通常是最容易受到伤害的病人之一，癌症药物和治疗经常严重危及他们的免疫系统，即使是用药过程中犯一个小错误和稍微改变用药，也可能带来灾难性的反作用。

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Alteration of temperature make the great effect to bridge structure.

温度变化对桥梁结构的变形影响很大。

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Thus cell kinetics alteration is the principal factor that influences the effect of radiotherapy.

因此，细胞动力学改变是影响放射治疗效果的重要因素。

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The gene they chose is involved in the synthesis of a hormone called gibberellin and, once again, a side-effect of the alteration was to cause the trees to grow faster.

ECONOMIST: GM trees are on their way