Radioactive calcium
[医] 放射性钙
🧩 词语组成解析
🗣️ 情景例句
Did Mitchell Johnson's review come out yet?
Mitchell Johnson的评论出来了没有？
So he keeps on studying after his English classes in order to prepare for life in America.
所以他在英语课下课后还继续学习，为以后在美国生活做准备。
They've got a special exhibition on this month.
这个月他们举办特别的展览。