Microfractography
显微断谱学
🗣️ 情景例句
A couple of weeks.
两、三个星期吧。
Take care of the pence, and the pounds will take care of themselves.
积少自然成多。
The next morning the whole family trooped in to watch the performance.
第二天早晨全家人结队来到起居室看我表演。