Groaned
v. 呻吟( groan的过去式和过去分词 ); 发牢骚; 抱怨; 受苦
🗣️ 情景例句
One apple. Two apples. Three apples. Four apples.
一个苹果。两个苹果。三个苹果。四个苹果。
A good dog deserves a good bone.
有劳得奖。
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。