因事先有别的安排，她将不能出席。

She will be unable to attend because of a prior engagement.

《牛津词典》

古希腊人首先有了把蔬菜放在面包片上的想法，罗马城里也发现了“比萨饼烤箱”。

The ancient Greeks first had the idea of putting vegetables on pieces of bread, and "Pizza ovens" have been found in Roman cities.

youdao

大部分大学论文要求你要先有一个想法，然后花时间去思考，去修改。

Most college papers require you to have an idea, then to spend some time thinking about it, and polishing it.

youdao

Now the word "first" begins to take on a much bigger range of significances than we might at first think.

现在看来，“初/先“一词,比我们起先所想的有更加重大的意义。

耶鲁公开课 - 弥尔顿课程节选

So, there will be a whole -- I'm looking ahead now, projecting into some topics that we'll explore more closely later.

所以对于这一部分,大家先有个印象,我们以后将会更细致的讨论

耶鲁公开课 - 古希腊历史简介课程节选

All right. Let's step back from this discussion and notice how many objections have we heard to what they did?

我们先暂停讨论,回想下对他们行为，有多少反对意见？

耶鲁公开课 - 公正课程节选