rock-ribbed
adj. 有岩石层的；顽固的
近义词：stony，die-hard，rockbound，
英英释义
Adjective
- abounding in or bordered by rocky cliffs or scarps;
"the rock-ribbed coast of Maine"
- tradition-bound and obstinately opinionated;
"an inflexible (or die-hard) conservative" "rock-ribbed republican"