18. Stammering has long been recognised to run in families, but scientists now say they have identified three genes which may cause the problem in some people.
口吃一直被认为是家族遗传疾病,科学家终于找到了三种可能造成某些人出现口吃的基因。
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19. It makes the timid bold, the slothful diligent, the ignorant wise. It makes the stammering tongue eloquent, and rouses the dormant intellect into new life and vigor.
20. Moved to scream, Marianela poured the little gentleman sweet anisette, which she kept under her pillow for extremely special occasions, and before long, he was dazed and stammering.
21. Moved to scream, Marianela poured the little gentleman sweet anisette, which she kept under her pillow for extremely special occasions, and before long, he was dazed and stammering.