相关单词近義詞 flat arch 扁拱, 平式爐頂, 平拱...臨近詞straight on, straight, Straight - injection, straight-run bitumen, straight-flute drill, straight-line coding, straight pole boundary, straight grooving iron, straight and easy road, Straight-arm capture, straight-line ringer, straight-arm stirrer 返回 straight arch