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- It is essential that he get up early. 他有必要早起。
- It is essential to balance one's budget. 量入为出是很重要的。
- It is essential to rally the broad masses of the people round. 把广大人民群众团结起来是极为重要的。
- It is a popular show, so advance booking is essential. 这是个很受欢迎的演出，所以一定要提前订票。
- They believe it is essential to defy convention. 他们认为反抗流俗是绝对必要的。
- It is essential that we act quickly. 重要的是我们必须立刻行动。
- It is essential that those patients do not smoke. 那些病人不要抽烟，这是很必要的。
- It is essential that we learn a foreign language. 我们学一门外语很必要。
- It is essential that those patients not smoke. 那些病人不要抽烟，这是很必要的。
- It is essential to keep the two groups separate. 将这两组隔开是完全必要的。
- It is essential to your libido and sexual arousal. 这对维持你的性欲和性唤起至关重要。
- It is essential for him to be prepared for this. 有必要让他对此有所准备。
- It is essential to combine theory with practice. 理论联系实践是很重要的。
- Under the circumstances it is essential that. 在这种情况下。
- Under the circumstances it is essential that... 在这种情况下，...是很必要的。
- They agreed that it is essential. 他们赞成提这个要求。
- It is essential that he should be prepared. 有必要使他有所准备。
- It is essential that we are on time. 我们要准时，这是很必要的。
- It is essential that you abide by these rules. （遵守这些规则是必要的。）
- It is essential that you should come home early. 你有必要早点回家。
