Postmediastinal
[医] 纵隔后的, 后纵隔的
🗣️ 情景例句
How was your flight?
旅途愉快吗？
Steel ball
钢珠
Jim ran very fast, but Yu Yan from Class 1 ran faster. He began to catch up with Jim.
吉姆跑得非常快，但是1班的余延跑得更快。他开始赶上吉姆。