按字母顺序排列的职业大全提供了有助于课程选择的信息。An A to Z of careers gives helpful information about courses.人类的变异受限于我们的基因可能存在哪些排列。Variation among humans is limited to the possible permutations of our genes.列出关键标题并按逻辑顺序排列。List the key heading...
他说话明显结巴。He spoke with a pronounced stutter.他脸色发白,说话开始结巴。He turned white and began to stammer.他老结巴,这叫她难以忍受。He tended to stutter, which tried her patience....