She was awarded tenure in 1938, denied a professorship for 18 years, and when she presented her Ph.D thesis she was the one that determined that the sun is made dominantly of hydrogen, not ion, the way most of the old goats thought.

她是在1938年被授予长期聘用资格，拒绝接受教授职位18年，她在她的博士论文写到,她就知道,太阳主要是由氢组成的，不是那些老教授认为的那样它是由离子构成的。

麻省理工公开课 - 固态化学导论课程节选

And then that one's got an 18 on it, so I had it for like two years now.

然后那个上面有一个数字18，所以我拥有它两年了。

忘不了的生日礼物 - SpeakingMax英语口语达人