Sitzmarks
是一种胃肠道造影剂（不透射线的小环）
🗣️ 情景例句
I'll need a taxi to the train station. Could you find one for me?
我想到火车站。能为我叫辆出租车吗？
You've got no ID card, boy!
你是小孩吧，怎么没带身份证呀。
But I'm worried about his Chinese.He may fall behind the other students when he comes back.
但我担心他的中文。等他回来后，他可能会落到其他同学后面。