speechless

a.1.不会说话的;2.不说话的

spectator sports, spectral, spectre (US specter), spectro-, spectrometer, spectroscope, spectroscopic, spectrum, speculate, speculate on, speculation, speculation about, speculative, speculator, sped, speech, speech therapist, speech therapy, speech-day, speechify, speechlessly, speechlessness, speed, speed limit, speed merchant, speed trap, speed up, speed-boat, speed-indicator, speed-up, speedboat, speedily, speediness, speeding, speedometer, speedway, speedwell, speedy, speleological (also spelaeological), speleologist (also spelaeologist),