sidingKK [ˋsaɪdɪŋ] /ˈsaɪdɪŋ/名詞1外牆板、壁板、外牆材料美式They replaced the old wooden siding with vinyl panels last summer.去年夏天他們把老舊的木質外牆板換成了塑膠板。2側線、避車線、岔道鐵路The freight train pulled onto a siding to let us pass.貨運列車駛入側線,讓我們的車先通過。