另一些人则往树上喷洒化学药剂以延缓树的生长。
不太容易看到的情况是，这些疾病伤及内部器官，引起贫血，延缓儿童的生长发育，损害认知发育并且危及妊娠结局。
Less visibly, they damage internal organs, cause anaemia, retard the growth of children, impair cognitive development, and compromise pregnancy outcomes.
科学家们希望他们的发现可以最终研发出阻断该基因的药物，延缓或中止癌细胞的生长。
The scientists hope their findings will eventually lead to the creation of drugs to block the gene, which may slow down or stop the growth of cancer cells.
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