If I only had two per codon I wouldn't have enough.

所以如果每个密码子只有两个碱基不够

耶鲁公开课 - 生物医学工程探索课程节选

Okay. I can't read it but two minutes and fifty seconds, two minutes--this one's only two minutes, three minutes and twenty seconds, that kind of thing.They're short, whereas Beethoven,as mentioned,is much longer.

好，我读不出但是它唱2分50秒，两分钟，这首歌只有两分钟，3分20秒，基本都是这么长，它们都很短，但是我们刚才说的贝多芬就要长的多。

耶鲁公开课 - 聆听音乐课程节选

I thought they were going to and that was to protect people who might be na?ve, innocent people who only have a million dollars or only have two million dollars and don't know what they're doing from hedge funds.

我认为他们这么做,是想保护一些没有经验的投资者,他们只有100万美元,或者只有200万美元,并不清楚对冲基金的操作流程

耶鲁公开课 - 金融市场课程节选

"I wasn't aware that only two drivers have done it, " he said.

CNN: F1 champion Vettel: Red Bull will be slower in 2012

"The birds know that someone was down there, but don't know two walked on but only one walked off, " she said.

BBC: Lake District ospreys get paparazzo Sarah-Jane Cherrie

Solid evidence that the vaccine worked might have been on the way if a handful of patients hadn't experienced the brain swelling after receiving only two doses.

FORBES: Magazine Article