to tell someone about something before it happens so that they are not worried or surprised by it 预先通知 warn sb. not to sth. 告诉某人别做某事 warn sb. against doing sth. 告诉别人别做某事 warn sb. of sth. 告诫某人可能有 warning n. 警报.警告.预先通知 wash [w ] 1. vt. to clean something using soap and water 洗 【查看更多】
