Aún no tenemos significados para "rap a knuckle".
1I rap a knuckle against the wood, then wait.
2Flipping the case over, he rapped a knuckle hard on the rounded bottom.
3He smiled again, warmly, and rapped a knuckle on the board.
4She entered, rapping a knuckle on the wood as she passed.
5I smiled up at him, rapping a knuckle on his helmeted face mask.
6Lewis rapped a knuckle smartly on the window.
7I rapped a knuckle against her desk idly.
8Ochoa rapped a knuckle on the Forensics print.
9Alice rapped a knuckle on the creature's shell.
10Jack rapped a knuckle against the base.
11Fredric rapped a knuckle against the mace.
12She rapped a knuckle on Artemis's head.
13Miss Tomson rapping a knuckle.
14This," he said, rapping a knuckle on the table, "has priority." And he gave Jackie his most dazzling thoughtful-but-macho smile.
15Then, moving with solemn care, he pointed one finger downward, made a fist, and rapped a knuckle on the surface of the tak board.
16"It is not like these guys," Solomon said, rapping a knuckle on a Templar-sarcophagus, "with bylaws and initiation-rites and such."