Samaria
[化] 氧化钐
🗣️ 情景例句
I think it's a good idea, Ellen.
我觉得这是个好主意， Ellen。
I'll pick up the tab.
我来付帐。
Pippa. I called to ask you if you'd like to come to a lecture on Thursday evening at the college.
皮普，我打电话是问你是否想听周四晚上在学院的一个讲座。