Shadowgraphy
[医] X线照相术
🏥 医学释义
X 射线照像术
🗣️ 情景例句
Rules are meant to be followed, not broken.
规则制订出来是让人遵守，而不是让人破坏。
Have but few friends though many acquaintances.
朋友要少，熟人要多。
He made the first telephone.
他发明了第一部电话。