Tephrochronology
n. [地]火山灰年代学( 亦作tephrachronology)
🗣️ 情景例句
Who are you rooming with?
你和谁同屋？
Since we need the goods urgently, we must insist on express shipment.
由于我方急需这批货物，我方坚持使用快递装运。
I was walking home when I met Dave.
我碰到大卫时，我正往家走。