Fractometer
[化]色層分離儀
??? 情景例句
I lost a whole day's work.
我丟掉一整天的工作成果。
I remember the girl whose father goes there every summer.
我記得那個女孩的父親每年夏天都去那里。
When he returned to India he spoke in public about the situation in South Africa.
當他加到印度之后，他還就南非的形勢公開發表演說。