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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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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In case of necessity for substitution of vessel or alteration of shipping schedule, the Buyers or the shipping agent shall duly advise the Sellers to the same effect.

如买方因故需要变更船只或更改船期时，买方或船舶代理人应及时通知卖方。

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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