它只存在了几年。

It has existed for just a few years.

youdao

当你得知我们所知道的餐馆只存在了几个世纪，你可能会感到惊讶。

It might surprise you to learn that restaurants, as we know them, have only existed for a few centuries.

youdao

迄今为止，只存在最薄弱的公共资助医疗和养老金系统，这加强了人们在工作时储蓄的动机。

There is, to date, only the flimsiest of publicly-funded health care and pension systems, which increases incentives for individuals to save while they are working.

youdao

Remember, language exists synchronically: it only exists in a moment, in a moment of simultaneity.

注意，语言存在于同一时间中：,它只存在于一个个时间截面上。

耶鲁公开课 - 文学理论导论课程节选

Is the probably illiteracy confined to third-world developing countries?

是否文盲只在,第三世界的发展中国家存在呢？

麻省理工公开课 - 媒体、教育、市场课程节选

And when you declare a variable, whether as an argument or as literally a local variable, they only live inside of that function.

当你声明一个变量，不论是一个参数,还是一个局部变量，它们只存在函数的内部。

哈佛公开课 - 计算机科学课程节选