Tenaciousness
固执
✅ 同义词
🗣️ 情景例句
What's the matter?
到底发生了什么事？
How much does that typewriter weigh?
那台打字机重多少？
and we know something of the great variety of the sea bed's topography.
而且我们对海底地形的千变万化也有了一定的了解。