frequent/rare/common occurrence• The Millers said bears in the camp are a rare occurrence.• In practice parents' associations are incredibly supportive and these problems are a rare occurrence.• Worse, a spokesman for the Treasuryimplies this is a frequent occurrence.• Clearly, crime is not a rare occurrence, but it is hidden methodically, and this raises problems for research.• The annualcompetition saw quite a rare occurrence in the sport of fishing.• This is probably a comparatively rare occurrence for small mammals, but it certainly does occur.• This was, of course, an extremely rare occurrence.• Because of the frequent occurrence of kept, this causes difficulties in quantitativeanalysis.
ADJECTIVE | VERB + OCCURRENCE | PREPOSITION | PHRASESADJECTIVE➤common, everyday, widespread常事;司空見慣的事情▸➤daily, frequent, regular每天/經常/定期發生的事▸➤rare, uncommon罕有的事;難得發生的事▸➤isolated, random孤立/偶然事件▸➤freak, strange, unexpected, unusual怪異的/奇怪的/意料之外的/不尋常的事情➤natural, normal自然的/正常的事情➤actual實際發生的事➤new新近發生的事➤high, low高發生率;低發生率◇the low occurrence of heart disease in this particular group這一特定人群心臟病的低發病率VERB + OCCURRENCE➤prevent防止事情發生➤reduce減少事情發生➤increase增加事情發生▸➤predict預測事情發生➤document, record, report記載/記錄/彙報發生的事➤explain解釋發生的事PREPOSITION➤occurrence in發生在⋯上的事情◇These mild fits are quite a common occurrence in babies.這種輕微的病症在嬰兒中很常見。➤occurrence of⋯的出現◇a past occurrence of breast cancer過去乳腺癌的一次發病PHRASES➤a common occurrence, a regular occurrence常發生的/定期發生的事情◇His visits became a regular occurrence.他的拜訪成了家常便飯。➤a daily occurrence每天發生的事➤frequency of occurrence出現頻率◇words with a high frequency of occurrence高頻詞