Gdf
n. 气体动力设备（Gas Dynamic Facility）
🗣️ 情景例句
You're lovelier than your pictures.
你比你的照片可爱多了。
We offer a life-time guarantee.
我们提供永久保证。
What is worth doing is worth doing well.
只要你觉得某事值得去做，就一定要把它做好。