Cryptogenic
a. 起因不明的
🗣️ 情景例句
She's going to a fashion show here in the city tomorrow.
她将参加明天在本市举行的时装表演。
Today we celebrate our day of independence.It's a national holiday.
今天我们庆祝我们的独立. 今天是国定假期。
When the instrument is situated at more than 700 miles from the earthquake centre,
如果把这种仪器安装在距震源700多英里远的地方，