Der
abbr. 区分编码规则（Distinguished Encoding Rules）
🗣️ 情景例句
Too easy?
太简单？
How much is the salary a month?
每月薪水多少？
Ships may be delayed by storms; flights may be cancelled because of bad weather, but trains must be on time.
轮船船期可能因风暴而推延，飞机航班可能因恶劣天气而取消，唯有火车必然是准点的。