Officia
[医]法定的，正式的
🗣️ 情景例句
I watched the film and cried throughout.
我看那部电影时从头哭到尾。
Maybe they're farmers.
他们可能是农民。
he realizes its volume, as the space that the shape displaces in the air.
他能意识到物体的体积，那就是它的形状在空气中所占的空间。