Serolin
血清晶质
🗣️ 情景例句
This is Alexandra Pappas, and this is my grandson Robbie,
这是Alexandra Pappas ，这是我孙子Robbie
He hesitated at nothing.
他对任何事都不会犹豫不决。
Look, Gary!That policeman's waving to you.He wants you to stop.
瞧，加里！那个警察正朝你挥手呢。他要你停下来。