Underdense
欠密的
🗣️ 情景例句
Well, it's a very easy operation, Carl.
这是个很简单的手术 Carl。
Keep your eyes wide open before marriage, and half shut afterwards.
婚前张开眼，婚后半闭月。
chasms wider than the Grand Canyon and at least one mountain more than twice as tall as Everest.
比大峡谷还宽的裂缝，起码有一座山有珠穆朗玛峰的近两倍高。