Sitzmarks
是一种胃肠道造影剂（不透射线的小环）
🗣️ 情景例句
What is the charge for that?
那要多少费用？
It will take me several hours if I really look at everything.
如果全部参观的话，那得需要好几个小时。
From a heavy gun that was raised, the captain realized that the ship must have been a cruiser.
从捞起的一门大炮来看，船长认为那艘船一定是艘巡洋舰。