obligatory
01
强制性的, 必须的
necessary as a result of a rule or law
例子
It is obligatory for all citizens to pay their taxes by the specified deadline.
所有公民必须在指定截止日期前缴纳税款是强制性的。
02
义务的, 例行公事的
done out of routine or social expectation, often with little enthusiasm
例子
Every meeting started with the obligatory small talk about the weather.
每次会议都以关于天气的例行闲聊开始。
词汇树
nonobligatory
obligatorily
obligatory
oblige
