• US /ˈɔfən,ˈɑfən,ˈɔftən,ˈɑf-/
  • UK /ˈɔfən/
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  • adv. 常 ; 常常 ; 不時 ; 每每 ; 頻繁 ; 時常 ; 往往;
  • She often is late for class

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【TED】比爾蓋茲談能源 : 至零方休的革新 ! (Innovating to zero! | Bill Gates) Image 29:33
  1. these are what people often refer to as the renewable sources.

  2. you can see it's a log there, often referred to as a traveling wave reactor.

    它就像是根木材,通常稱為推旅波式反應器(Traveling Wave Reactor,TWR)。
53181 544 A2 初級 有中文字幕

【TED】設計的首要秘技是察覺力 Tony Fadell: The first secret of design is noticing

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  1. john asks, "how often does that train go by?"

  2. dan replies, "so often, you won't even notice it."

    丹就回答:「很頻繁, 頻繁到你根本不會察覺。」
18062 406 A2 初級 有中文字幕
  1. This is not the most mispronounced word in the English language as someone defined it. According to Longman Pronunciation Dictionary, the word "often" can be pronounced with the "t" (like off-ten) or without the "t" (oh-ffen). Many speakers use both the form without t and the form with it. Preference polls. Br. no t 73%, with t 27%. American English, no t 78%, with 22 %. (Longman Pronunciation Dictionary).
    A: How often do you check pronunciation dictionaries? B: Not very often. A: You should do it oftener.