Cheirantic acid
[化] 桂竹香酸
🧩 词语组成解析
🗣️ 情景例句
How long does it take you to get through a letter?
你写一封信要花多少时间？
It's hard to say.
很难说。
You can imagine how useful this is, particularly in countries like China and Japan, which use written characters not letters.
你可以想像得到，特别是在中国和日本这些使用文字而不是字母的国家，这是多么有用处！