1.dangerous的反义词是safe。
2.dangerous释义:危险的;不安全的。safe的意思是安全的。
3.It's a dangerous stretch of road.那段路很不安全。
4.Officials arrived to assess whether it is safe to bring emergency food supplies into the city.官员们赶来评估向该市调拨紧急救援食品是否安全。