必须的

I'm not really sure if it was necessary though.

我不太知道这是必须的。

This step is not necessary, but there is no harm in doing so.

这一步不是必须的，但这么做没有害处。

"In some ways it is," I replied.

"在某些方面是必须的。"

This article is a MUST, if you are so inclined!

本文是必须的，如果你是如此倾斜！

Initial data : Initial data are needed for the application to work.

初始化数据：是应用程序正常运行所必须的数据。

That is integrant luxury.

这是必须的奢侈品。

Before cutting food, some Americans switch their knife and fork to the opposite hands, but it isn't necessary to do this.

在切食物之前，有些美国人会把刀叉换个手，但此举并不是必须的。

Before cutting food,so me Americans switch their knife and fork to the opposite hands,but it isn' t necessary to do this.

在切食物之前，有些美国人会把刀叉换个手，但此举并不是必须的。

We knew that we had the makings of a great team.

我们拥有一个伟大团队所必须的所有素质。

That is not mandatory .

这不是必须的。

No clear conclusions can be made about the predictie alidity of specific measures, they found, except for criteria for the underuse of drugs for cardioascular disease.

除了心血管病不合理用药标准外，对于特定评价方法的预测效度没有明确的结论。

The third and last is that almost all of them, being infinite in number, have been impostures, and by idle and crafty brains merely contrived and feigned after the event past.

第三、即最后一点是：几乎所有这些不胜枚举的预言都是欺人之谈，都是在事件过后由无聊而狡猾的脑筋推测与凭空捏造的。