🗣️ 情景例句
He's not making much progress with his English.
他的英语进步不大。
When did you find this book?
你什么时候找到这本书的？
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。