1
act of indecorum
indecorum 通常为不可数名词，但可用不定冠词修饰具体事例。
His joke was considered an act of indecorum at the formal dinner.
他的笑话在正式晚宴上被视为一种无礼行为。
不得体；失礼；不礼貌
先理解核心含义，再看它在真实句子里的用法。
不得体；失礼；不礼貌
Indecorous behavior, or the state of being indecorous
His joke was considered an act of indecorum at the formal dinner.
他的笑话在正式晚宴上被视为一种无礼行为。
不合礼节的行为；不雅观的状态。
Indecorous behavior, or the state of being indecorous
His indecorum at the formal dinner embarrassed everyone.
他在正式晚宴上的无礼行为让所有人都感到尴尬。
She was criticized for her indecorum during the solemn ceremony.
她在庄严仪式上的失礼举动受到了批评。
The committee noted his indecorum in addressing the elders.
委员会注意到他对长辈说话时的无礼。
indecorum 通常为不可数名词，但可用不定冠词修饰具体事例。
His joke was considered an act of indecorum at the formal dinner.
他的笑话在正式晚宴上被视为一种无礼行为。
There was indecorum in the way he addressed the elder.
他与老人说话的方式有失礼数。
with indecorum 为副词性用法。
She behaved with indecorum at the ceremony.
她在典礼上表现得无礼。
Not this
His behavior at the party was indecorum.
Use this
His behavior at the party was indecorous.
indecorum是名词，不能作表语形容词；应改用其形容词形式indecorous。
Not this
He showed indecorum to the guests.
Use this
He showed indecorum toward the guests.
名词indecorum后搭配介词toward表示‘对……无礼’，不宜用to。
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页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.