rock-solid 的英语意思
rock-solidˌrock-ˈsolid, rock solid adjective 
查看全部语言翻译1rock-solid things can be depended on and trusted not to change形容事物可靠、值得信赖且不会改变: 
a rock-solid guarantee坚如磐石的保证2very hard and not likely to break非常坚硬，不易破碎
查看全部语言翻译1rock-solid things can be depended on and trusted not to change形容事物可靠、值得信赖且不会改变: a rock-solid guarantee坚如磐石的保证2very hard and not likely to break非常坚硬，不易破碎