1. Therefore a grounded state of being is most imperative in the ascent to 3000 and beyond. 因此，在提升到3000股及更高中，一个根植的状态是极其必要的。
2. However, on the bad cutting condition, it is imperative to have an appropriate groove type design and accurate manufacturing technology. 在切削条件很恶劣的情况下，就需要合理的设计槽型和精确的编制制造工艺。
3. The transition from abstract data types to classes involves an important stylistic difference: the introduction of change and imperative reasoning. 从抽象数据类型到类的转变中包括了一个重要的格式差异：引进了变化和命令推理。
英英解释
n.
1. a mood that expresses an intention to influence the listener's behavior
2. some duty that is essential and urgent adj.
1. requiring attention or action
2. relating to verbs in the imperative mood
