Sismograph
n. 地震仪, 测震仪
🗣️ 情景例句
She told the boss the was quitting.
她告诉老板说她打算辞职。
He has a letter.
他有一封信。
It was an important part of Native American's existence.
野牛是美洲土著人赖以生活的重要部分。