Dissertating
vi. 讲演；论说；写论文
🗣️ 情景例句
She can't sit around and do nothing.
她总不能闲坐着无所事事呀。
Care killed the cat.
忧虑伤身。
We can also use satellites to help us make telephone calls to foreign countries.
我们也能利用卫星帮助我们打国际电话。