Radioactive colloid
[化] 放射性胶体
🧩 词语组成解析
colloid
[['kɔlɔid]]
n. 胶体, 胶质, 胶态\\na. 胶态的, 胶质的
🗣️ 情景例句
Where do you like to live, in the city or in the country?
你喜欢住在城市还是乡村？
To trip and fall
绊倒
The train arrived on time.
火车准时到达。