They're not all found in every treaty, but they're often enough found that we can speak of these six elements.

它们并不是每个条约都能找到,但是提及六个部分，它们都能被找到。

耶鲁公开课 - 旧约导论课程节选

But it would often happen that there were not enough Corinthians who were ready to go with you on your expedition.

但是经常会没有足够的人,愿意与你一同踏上征程

耶鲁公开课 - 古希腊历史简介课程节选

And research very often delivers bad news, saying it's not enough-- the contact; it's not enough to praise.

研究往往带来坏消息，只是接触还不够;,只是赞扬还不够。

哈佛公开课 - 幸福课课程节选

You have to inject it multiple times because the first blip that you get in immune response is not very high, you have to boost and often you have to boost again in order to get a high enough response to be protected.

你必须得进行多次注射,因为第一次注射,无法使免疫系统产生强烈反应,你得要增强免疫,通常还得再增强一次,以使反应足够强烈,从而起到保护作用

耶鲁公开课 - 生物医学工程探索课程节选