occurrence的例句

occurrence 的相关例句:

31.	predict the occurrence of an earthquake
	预报将发生地震
32.	a common occurrence
	常事
33.	words of most frequent occurrence
	出现得最频繁的词
34.	a rare occurrence
	罕见的事
35.	a shocking [startling] occurrence
	骇人听闻〔触目惊心〕的事件
36.	an unexpected occurrence
	出乎意料的事。
37.	an unprecedented occurrence
	前所未有的事件
38.	an unusual occurrence
	不同寻常的事
39.	on the occurrence of a vacancy
	一旦出现空缺