Hardit, hard, hard drawn wire reinforcement, hard-of-hearing amplifier, hard-rock tunneling machine, hard alloy end milling cutter, hard wall-rock construction, hard disk broadcasting system, hard brittle surrounding rock, hard anodic oxidation coating, hard-of-hearing telephone, hard breakdown characteristic
相似词
hard porn, hard power, hard rock, hard science, hard seltzer, hard shoulder, hard to swallow idiom, hard up, 返回 hard sell