字典網>> 英漢字典>> B開頭詞條>>back porch的意思 漢英字典back porch中文翻譯：【計】 後背區, 後沿 back porch英文解釋：名詞 back porch:a porch for the back door 相關詞條：backward chaining Back-Off back-coupling backing sand back boundary cell back impeller back end background density backward differentition method backward tracing