名词
中文翻译：三刻钟
同义词：
['twenty-one', 'twenty-onethirty例句：1. The clock struck the tierce at exactly 9:30.（时钟在九点三十五敲了三下。）']
例句：
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1. The clock struck the tierce at exactly 9:30.
时钟在九点三十五敲了三下。
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2.She was late for work because she had a tierce of meetings to attend.
她上班迟到了，因为她有一场会议要参加。
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3. He spent his tierce in the library reading books.
他在图书馆里度过他的一刻钟时间阅读书籍。