There are 12 weeks to go, counting from today.

从今天算起还有12个星期。

《牛津词典》

Only 12 weeks ago he underwent major heart transplant surgery.

仅仅12周之前，他接受了一次心脏移植的大手术。

《柯林斯英汉双解大词典》

He has been on a diet for 12 weeks.

他已经持续节食十二周了。

youdao

This was a huge number for me up until 2 weeks ago Besides the 100 billion neurons in the brain . there are 12-15 thousand cochlear hair cells.

直到两周前，这对我来说还是个庞大的数字,除了这一兆亿个神经元外,还有12，000到15，000个毛细胞。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选