Bismuth gingivitis
[医] 铋毒性龈炎
🧩 词语组成解析
bismuth
['bizməθ]
n. 铋;
n. 齿龈炎
🗣️ 情景例句
Sure.
当然。
Sometimes I miss home cooking.
我有时想念家乡菜。
and then there are three thousand million other Milky Ways, or galaxies, in the universe.
况且在宇宙中还有30亿个天河，即银河系。