Constant series
[机] 置换序列
🧩 词语组成解析
🗣️ 情景例句
Use a dictionary and grammar guide constantly.
经常使用字典和语法指南。
Of nothing comes nothing.
无中不能生有。
sailing vessels like the Cutty Sark were used to carry tea from China and wool from Australia.
“卡蒂萨克”号之类的帆船被用来从中国运回茶叶，从澳大利亚运回羊毛。