Precipitators
沉淀器; 滤尘器; 促成者(precipitator的复数)
🗣️ 情景例句
Please come in, Mr. Wilson.
请进，威尔逊先生。
How long have you been studying English?
你学英语多久了？
Jim is asking Uncle Wang some questions.
吉姆在问王叔叔一些问题。