certain的副詞和名詞[朗讀]

certain的副詞是certainly。adv.肯定;當然;無疑;確定;
例句：it is certainly worth checking up on your benefit entitlements.查清楚你可以享受哪些福利是絕對有必要的。
擴展資料。
例句：
certain of those present were unwilling to discuss the matter further
某些在場的'人不願意進一步討論這個問題。
those beliefs still prevail among certain social groups
這些信念在某些社會群體中仍很盛行。
the work must be completed within a certain time limit
這項工作必須在一定期限內完成。
the company's financial position is not certain
這家公司的財務狀況不明朗。
many animals breed only at certain times of the year
很多動物只在一年的某個時候繁殖。