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
As Ms. Smith has indicated on several previous occasions.
史密斯夫人在先前的几个场合已表示过我们对目前的印刷的安排很满意。
The houses downtown are very expensive.
市区的房子很贵。
Twenty year!That's long time.
20年！这个时间可不短。