发出了明确的警讯: send a clear message tosendaclearmessage,to
少年警讯中央咨询会会议: junior police call central council meeting
卫生: hygienism; hygiene; health; sanitation 短语和例子个人卫生 personal hygiene; 公共卫生 public health; 环境卫生 environmental sanitation; 讲卫生 pay attention to hygiene; 饭前不洗手, 不卫生。 it is unsanitary to eat with