obligatory
柯林斯詞典
1. ADJ If something is obligatory, you must do it because of a rule or a law. 規(guī)定性的
Most women will be offered an ultrasound scan during pregnancy, although it's not obligatory. 大部分婦女懷孕期間都將進行超聲波檢查，盡管不是規(guī)定性的。
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obligatory /??bl?ɡ?t?r?/
劍橋詞典
- If something is obligatory, you must do it because of a rule or law , etc.
（根據(jù)規(guī)定、法律等）必須履行的，強制性的，有義務(wù)的
The medical examination before you start work is obligatory. 工作前必須先體檢。
[ 動詞后面接一個帶to的不定式 ] The statute made it obligatory for all healthy males between 14 and 60 to work . 這條法令規(guī)定所有年齡在14至60歲的男子必須工作。
expected because it usually happens
（因為常發(fā)生而）必然的，預(yù)料之中的；慣常的
Several Secret Service agents surrounded the President, all wearing the obligatory raincoat and hat . 幾名特工圍在總統(tǒng)四周，當然是一律穿著風雨衣，戴著帽子。 返回 obligatory