razor-sharp

adj extremely sharp 极锐利的: (fig 比喻) ,razor-sharp `wit, repar`tee, `criticism, etc 极敏锐的智力、 极巧妙的回答、 极尖锐的批评.

raving, ravings, ravioli, ravish, ravishing, ravishingly, raw, raw material, raw-boned, rawhide, rawness, ray, ray (also re), rayon, raze, raze (also rase), razor, razor-back, razor-blade, razor-edge, razz, razzle, razzmatazz, RC, RCM, RD, re, re-, re-count, re-create, re-creation, re-echo, re-educate, re-education, re-elect, re-election, re-enter, re-entry, re-examination, re-examine,