Tomosynthesis
层析 X 射线照相组合
🗣️ 情景例句
I know.
我知道。
He hesitated at nothing.
他对任何事都不会犹豫不决。
It is thought that they arrived more than 30,000 years ago by crossing a land bridge from Asia to America.
他们被认为是在3万多年以前从亚洲跨越一座陆桥来到美洲的。