Ppsn
公用分组交换网
🗣️ 情景例句
She is devoted to her children.
她深爱她的孩子。
I have just finished my homework.
我刚刚做完了作业。[刚刚完成的动作
I mean powder that is made from fish, blood and bone.
我是指用鱼、血和骨头制成的粉末。