Web Reference: 以下是一些例句： The first step is to gather your materials. Firstly, let's discuss the budget. First of all, we need to identify the problem. 在大多数情况下，"first" 和 "firstly" 可以互换使用，但 "firstly" 通常用于强调某件事是最重要的。 "first of all" 则通常用于引出一系列要点或步骤。 “First” 和 “frist” 的正确拼写和使用问题，解答了常见的拼写困惑。 “First in Class”，顾名思义，也就是首创新药。 根据FDA定义，被授予First-in-class的药物是指使用全新的、独特的作用机制来治疗某种疾病的药物。 它是一种彻底创新的方法，第一个能够治疗该疾病的药。 在NMPA的申报当中，它同样也应该属于1.1类新药。
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First Missing Positive Programming Interview Net Worth 2026: Salary, Income & Wealth Net Worth & Biography
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Last Updated: April 12, 2026
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