By the end of the study, each participant had played over 300 3-minute games of Space Fortress.

研究结束时，每个参与者玩了300多次3分钟的“太空堡垒”游戏。

youdao

F. Oral composition and 3-minute training method: This method is suitable for intense training.

口语作文和3分钟训练法：此法适用于强化训练。

youdao

You can slowly add 2 or 3-minute intervals on the softer sand, with longer recoveries on the wet sand.

您可以慢慢的在柔软的沙滩上增加2 - 3分钟的间隔，在湿的沙滩上休息更长时间。

youdao

In this case, I'm going to get back the answer 3 F-O-O because the user typed in F-O-O, but wait a minute, what's with this?

假若这样，我得到了答案3,因为用户输入了，等一下，用这个干吗？

哈佛公开课 - 计算机科学课程节选