中英释义：
双语例句
银行行长在四月三十日辞职了.
The bank governor renounced his job on April 30.
西区海底隧道已于四月三十日通车.
The WHC was opened to traffic on April 30.
世博组织者已经决定于四月三十日举办开幕式，闭幕式时间则定在十月三十一日。
The Expo organizer has decided the opening ceremony will be held on the night of April 30 and the closing ceremony on October 31.
重点词汇
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四月
April; Apr.; the fourth month of the lunar year
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三十
thirty