Radioexamination
X射线透视法, 伦琴射线透视法
🗣️ 情景例句
Something old ...
旧的东西……
A horse that will not carry a saddle must have no oats.
不愿加鞍的马，不得吃燕麦。
Who won the girls' 400 metres?
女子400米赛跑谁获胜？