Cytoimmunity
细胞免疫
🗣️ 情景例句
going to the children's ward once or twice a week
每星期就去小儿科病房一、两次
What's your nationality?Are you American?
你的国籍是什么?你是美国人吗？
The journey is so smooth that there is nothing to prevent you from reading or sleeping.
旅途平稳，丝毫不妨碍你阅读或睡眠。