obligatory

美音音标: [ə'blɪɡət(ə)ri] obligatory
英音音标: [ə'blɪɡət(ə)ri] result.0.expl|add:"

同义
obligatory
词性
a
解释
morally or legally constraining or binding
示例
attendance is obligatory|an obligatory contribution

同义
obligatory
词性
s
解释
required by obligation or compulsion or convention
示例
he made all the obligatory apologies