Contrast agent
[化] 造影剂
🧩 词语组成解析
🗣️ 情景例句
Oh, no sir. We already gave you a discount on each item.
哦，不行，先生。每一件东西我们都给你打过折扣了。
The ancient Roman civilization was finally destroyed by the nomadic tribles.
古罗马终于被游牧民族灭亡了。
It follows the shape of the rock.
它顺着岩石的形状。