Iem
[化] 免疫电镜术
🏥 医学释义
离子交换膜
🗣️ 情景例句
And what's Robbie cooking for dinner? Robbie
为晚餐准备了什么？
John is not forty-five yet,is he?
约翰不够45岁,是吗？
While we were having breakfast, our little boy, Tommy, found two small coins on the floor.
正当我们吃早饭时，我们的小男孩汤米在地上找到两枚小硬币。