-keepsilentlikeacicadaincoldweather;beasquiet[silent]ascicadasinlateautumn;beassilentasacoldcicada;beassilentasawintercicada;becomesilentasanautumncicada;bereducedtosilence;deadsilent;holdone'stongue;keepmumabout;keepone'smouthshut;keepquietoutoffear;maintainadiscreetsilence;(as)muteasamouse[afish;astone;astatue]:
Assoonashefinished,hissupportersapplaudedvigorously,butmostofthemassesweretakenabackandexchangeddoubtfulglances.他的话完了，他的几个支持者拼命地鼓掌，而更多的人却噤若寒蝉，面面相觑。