Cryptogenic
a. 起因不明的
🗣️ 情景例句
My address is 36 South 75th street, Apartment 10.
我的地址是南七十五街三十六号10号房。
Our new product line has been very successful. We've expanded the factory twice this year already.
我们新的生产线非常成功，我们今年已把工厂扩展了两倍。
runs the gentle slope of the continental shelf, geologically part of the continents.
从地质学上来说，它是大陆的一部分。