Now take these two fingers-- the middle finger and the thumb-- and as much as possible, from that 90 degree angle, create a circle.

再让这两个手指-,中指和姆指-,尽可能保持直角时围成一个圆圈。

哈佛公开课 - 幸福课课程节选

I don't know if you're familiar with the television program "Full House" from the early 90s.

我不知道你看没看过90年代很有名的一出电视剧叫《浪漫满屋》。

旧金山的热点 - SpeakingMax英语口语达人

they start from 80 or 90, the cheapest ones.

最便宜是八十或者九十英镑。

伦敦生活的优缺点 - SpeakingMax英语口语达人