Precipitin
n. 沉淀素\\n[化] 沉淀素
🗣️ 情景例句
Hello, operator.
喂， 接线生。
How long is the street?
这条街有多长？
A few hours earlier, someone had told the police that thieves would try to steal the diamonds.
数小时以前，有人向警方报告，说有人企图偷走这些钻石。