I have constant time access which is great, but I paid a price, which is I had to use up some space.

我的访问时间现在是常数级别，这个非常的棒，但是我也付出了代价，不得不使用更多的空间，在整数的例子中。

麻省理工公开课 - 计算机科学及编程导论课程节选

The "I want to" pattern is a great pattern that you probably have been using and you should use often.

I want to”句型是一个非常棒的句型，你可能之前早已用过，你也可以多多使用这个句型。

I want to 课堂 - SpeakingMax英语口语达人

The "I have" pattern is very simple but it's great. Because you can use it to show so many things.

I have”句型非常简单但却非常好用。你可以用它来表示大大小小各种情况。

I have 课堂 - SpeakingMax英语口语达人