Generally speaking, writing fast code means keeping memory allocations to a minimum, writing tight code, and avoiding certain language and programming idioms that can subtly cripple performance.

通俗点说，编写运行快速的代码意味着最小的内存分配、写更紧凑的代码、避免一些可能降低性能的程序设计语言和傻瓜式编程方法等。

youdao

The most frightening situation is when you're listening to a conversation going on between native Americans, at a certain point, you may wonder whether they're speaking the language of ENGLISH.

最让你头疼的情形不是与英语母语者交谈，而是听他们之间的谈话。

youdao

When you speak about Greeks you will be speaking about something more than merely the fact that they spoke a certain language.

当你谈论到希腊人的时候,你不仅仅说,他们只是讲一种特定语言的人群

耶鲁公开课 - 古希腊历史简介课程节选