Seismometer
[ [saiz'mɔmitə] ]
辅助 Assistant
n. 地震检波器
🗣️ 情景例句
Oh, I remember this picture.
噢 我还记得这张照片。
What time does the first train to Boston leave?
第一班去波士顿的列车什么时间开出呢？
Some of the things were hundreds of years old.
展出的一些东西已有数百年的历史了。