不可譯的密碼undeciphered writing systems: 未解讀文字undecimal: 十一進(jìn)制的undecked: 敞艙的; 無甲板的; 無遮蓋的undecided science: 待定理科課程undecked beam: 艙梁下載手機(jī)詞典可隨時隨地查詞查翻譯