Dissertates
vi. 讲演；论说；写论文
🗣️ 情景例句
She's right.
她说得对。
Sure. We are friends since primary school.
当然，我们从小学就是朋友了。
This decline in vigour with the passing of time is called ageing.
生命力随时间的流失而衰退叫做衰老。