Translation of "Primary" in Chinese

My primary concern is your safety.

我最關心的是你的安全。

Honesty is the primary reason for his success.

誠實是他成功的主要原因。

The primary cause of his failure is laziness.

他失败的最主要原因是懒惰。

Mixture of the three primary colors creates black.

把三元色混合的話就會變成黑色

This problem is too difficult for primary school children to solve.

这个问题让小学生解决太难了。

Saxophonists often double on flutes, which have similar fingerings to their primary instruments.

薩克斯管吹奏者常常兼演奏長笛，對主要樂器而言它們具有類似的指法。

My mother used to pick me up every day when I was at primary school.

我读小学的时候，我母亲每天来接我。

Tom has memorised so many kanji that he can read books for primary school children.

汤姆会很多小学生读本里的汉字。

- This problem is too difficult for primary school children to solve.
- This problem is too difficult for elementary school children to solve.
- This problem is too difficult for grade school children to solve.

这个问题让小学生解决太难了。

Over the next fifteen years, architects, planners and community developers will work together to transform 346 acres of industrial wasteland into 6,500 homes, two shopping centres, a marina, a primary school and college, and parkland.

在接下来的十五年里，建筑师、计划者和社区开发企业为了把三百四十六英亩的工业荒地改变成六千五百座房子、两个购物中心、一个小艇船坞、一个学校、一个高中和公用场地都会一起工作。