To go off track means to move away from one's intended purpose or goal.

To go off track意思说脱离某人原本的目标。

Its intended purpose is to ask thought-provoking questions about the world.

其目的是提出有关世界的发人深省的问题。

Good writing must achieve your intended purpose.

好的写作必须达到你的目的。If you want to write about how to make Jiaozi， your reader， after reading your writing， should get everything he or she needs to know about how to make Jiaozi， from the necessary ingredients to step by step instructions。 如果你想写如何做饺子，你的读者在读完你的文章后，应该得到他或她需要知道的关于如何做饺子的一切，从必要的配料到一步一步的说明。

From buildings to appliances, the principle of durability ensures that structures and objects serve their intended purposes for extended periods.

从建筑物到设备，耐久性原则确保结构和物体在较长时间内服务于其预期用途。

Additionally, they believe that durable products are often of higher quality, meaning that they are more effective and efficient in their intended purpose.

此外，他们认为耐用产品通常质量更高，这意味着它们在实现预期目的时更加有效和高效。

Instead, companies should focus on offering products that are designed for their intended purpose and that can be repaired or recycled where possible.

相反，公司应该专注于提供专为预期目的而设计的产品， 这些产品可以在可​​能的情况下进行维修或回收。

K-12 Schools also provide childcare that makes working parents’ lives easier – not the intended purpose of schools certainly, but a pretty useful latent function.

K-12 学校还提供托儿服务，让在职父母的生活更轻松——这当然不是学校的预期目的，但却是一种非常有用的潜在功能。

Artifacts may be of simple, even primitive design, and yet be built to serve their intended purpose in a reliable manner during a lifetime of use.

人工制品可能是简单的， 甚至是原始的设计，但在其生命周期内以可靠的方式构建以服务于它们的预期目的。

It did still work for our intended purposes, but just a reminder to weigh your gear yourself, if you think you're pushing onto that 250 gram limit.

它仍然适用于我们的预期目的，但只是提醒您自己称量您的装备，如果您认为您正在推动 250 克的限制。

But it's just carbon, the same element that makes up the graphite in this pencil lead, which is so soft, that it's intended purpose is to rub off on stuff.

但它只是碳， 与构成这支铅笔芯中的石墨的元素相同，它非常柔软， 其预期用途是擦掉东西。

After this violent incident failed in its intended purpose of destroying the W.T.C., who could have envisaged an assault as disastrous as the one inflicted on it and the United States on September 11, 2001.

在这起暴力事件未能达到摧毁 W.T.C. 的预期目的后，谁能预料到一场与 2001 年 9 月 11 日对它和美国造成的袭击一样灾难性的袭击。