Salt is important to fetuses and children because it is required for optimal growth.

盐对胎儿和儿童都至关重要，因为盐是优先生育的必要条件。

Iron is the most useful metal known. It is required in nearly every trade.

钢铁是人们熟知的最有用途的金属，近乎每笔交易都涉及它。

The Master said, " In language it is simply required that it convey the meaning."

“辞达而已矣。”

For instance, it is required that these pieces can be put together with one translational motion.

举个例子，这些部件需要一个平移动作才能连接在一起。

The Census is such an important part of the country's record-keeping, it is required by law.

人口普查是国家保存记录制度的重要组成部分，是法律要求的。

" In hand" means having something ready to use if it is required.

“在手”意味着有东西可以随时使用，如果需要的话。

It is required that all members of the club speak English.

俱乐部所有成员都要说英语。

It is required that every student (should) attend the meeting this afternoon.

要求每个学生都参加下午的会议。

Now it is required that those who have been given a trust must prove faithful.

所求于管家的，是要他有忠心。

There's often a sense of having something readily or easily available to use if it is required.

如果需要，通常会有一种随时或容易使用的感觉。

Also on Monday, New York City announced it is requiring all public school teachers and workers in the nation's largest school system to be vaccinated.

同样在周一，纽约市宣布将要求全国最大学校系统的所有公立学校教师和工作人员接种疫苗。

Today, it is required reading in many high schools and colleges in the United States; many students are required to read this book.

今天， 它已成为美国许多高中和大学的必修课；许多学生都需要阅读这本书。

Something that is " optional" means that it doesn't have to go with the desk;you can choose it or not, it isn't required.

“可选” 的东西意味着它不必与办公桌一起使用； 您可以选择或不选择它， 它不是必需的。

Modern life has engineered out the need for us to move. When you engineer something out, you design things in such a way that it is no longer required.

现代生活已经消除了我们运动的需求。当你设计出某些东西时，你是以不再需要它的方式设计的。

The idea is that there is a command, there is an order: " It is mandatory that all students take the test, " it is required.

这个想法是有一个命令，有一个命令：“所有学生都必须参加考试， ” 这是必需的。

For there is no necessity to hold idle cash to bridge over intervals if it can be obtained without difficulty at the moment when it is actually required.

因为如果在实际需要的时候可以毫不费力地获得闲置现金， 就没有必要持有闲置现金来弥补间隔。

In the U.S. nowadays, it's required that you go to school until the age of 16 in most states, but it isn't required that you graduate from high school, although most people do.

现在在美国，大多数州都要求你上学到 16 岁， 但并不要求你从高中毕业， 尽管大多数人都这样做。

You pop the yolk of the egg inside your mouth, and as you pop it is required that you say solemnly, like a grace, " This is the most delicious morsel God ever gave to man" .

在你塞进去的时候， 你必须庄严地说， 就像一种恩典， “这是上帝赐予人类的最美味的食物” 。