Tenured
终身的；长期保有的
✅ 同义词
🗣️ 情景例句
What grade are you in?
你在几年级？
Thank you for your letter.
谢谢你的来信。
It was from the study of these that so much was learnt about the interior of the earth.
正是从这两种波的研究中，我们可以了解到地球内部的许多情况。