这种毒素阻止大脑释放一种化学信号，从而抑制肌肉收缩。
By blocking the release of a chemical messenger in the brain, the toxin stops muscles from contracting.
他们发现了抑制一氧化氮并阻止血液流动的途径。
They discovered a pathway that inhibits nitric oxide and thus impedesblood flow.
他们发现了抑制一氧化氮并阻止血液流动的途径。
They discovered a pathway that inhibits nitric oxide and thus impedes blood flow.
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