字典網>> 英漢字典>> S開頭詞條>>second-level definition的意思 漢英字典second-level definition中文翻譯：【計】 二級定義second-level definition英文字典second-level definition相關詞條：secondary-tertiary alcohol second-level storage secondary structure secondary bronchitis second-timer secondary leakage flux secondary elaboration second coordination sphere secondary input port secondary nitroparaffin