crescendo-crescendo murmur渐弱: fade-out渐强: fade-in杂音: noise渐强或渐弱: crescendo渐强性杂音: crescendo murmur下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:渐弱-渐强杂音,即可在微信中查询翻译