Numismatologist
n. 货币学家 (numismatology的变形)
🗣️ 情景例句
Because it's also known now as Youth Day. So you see-
因为这个节日还被称为是青年节，所以你明白了-
At 6 o'clock sharp.
6点。
On weekdays, I get up at 6:30.
我平时六点半起床。