primary function

基本解释

And even if they are still called “phones”—a word derived from the Greek word for voice—making voice calls may no longer be their primary function.
即使它们仍被我们叫做“电话”（电话这个词源自希腊语中的“声音”一词），打电话可能不再是它们的主要功能了。
A multitude of separations are accomplished by distillation, but its most important and primary function in the refinery is its use for the separation of crude oil into component fractions.
许多分离过程是通过蒸馏进行的，但蒸馏在炼油厂中的最重要和主要的功能则是它在将原油分离成不同馏分过程中的作用。
The primary function of the human mind is its ability to absorb information and adapt to challenging unfamiliar environments.
人类大脑的主要功能就是吸收信息的能力和挑战陌生环境的适应性。

He says a primary function of the home is to give migrants a safe place to sleep and something to eat as well as to provide them with information about the dangerous journey ahead.

As for that detachable scope, it's primary function is window dressing.
ENGADGET: blogger-avatar
In most developed markets, the primary function of an equity market is to provide price discovery, allowing successful companies to raise capital for profitable investment opportunities.
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