—how often does mary go to the concert? —she often goes to it on saturday evening. 时常, 常常 这些读音都是正确的，因为美音和英音发音有所区别，所以会有人说得不一样。 有t 的发音是因为often 这个词来源于oft，英国人比较考究，所以大部分人都要发出t，并认为有t.
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经常英文：often 、frequently、regularly 1、often 读音：英 [ˈɒfn] 美 [ˈɔ:fn] adv.经常;常常;时常;再三 比较级： more often 最高级： most often 例句：people often have incorrect information about food. Often：通常表示动作或状态发生的频率较高，但不一定有规律性。例如：“i often go to the gym.” 2. Often是 频率副词，和sometimes，always，never，frequently等一样表示习惯性。 1、often后接动词原形用于 一般现在时： 例：i often go to the library on sundays.
3.—how often does my daughter take the medicine?
