“安全的”的英语？

除非是直接被击中，否则这个地下掩体是非常安全的。The dug-outs were secure from everything but a direct hit.我从未有过如此安全的感觉。I couldn't remember ever having felt so safe and secure.人们必须确信这种治疗方法是安全的。People must be satisfied that the treatment is ...