字典網>> 英漢字典>> F開頭詞條>>first sound的意思 漢英字典first sound中文翻譯：【醫】 第一心音first soundfirst sound例句：Alarmed at the first sound, we hit the dirt.第一聲警報一響我們就迅速臥倒。相關詞條：first row contains first-hand evidence first-ended first-out first notice day first intention first half year first detail group first-fit method first quarter first anode