We can't recall how often he's written.
我们记不起来他每隔多久写一封信。
基础口语 1700 句 第 135 部分

📚 句中词汇解析

从本句中提取的重要词汇

recall ['rikɔl] 词频1 词根: re
vt. 叫回,召回;使想起,回想;取消;调回工厂; n. 召回,唤回;记忆力,回想;罢免;收回通告;
💡 re回,向后+call呼唤→召回,回忆
"He seemed to have a very selective recall of past events."
他好像对过去的事情有选择地回忆.
近义:recollect, remember, revive, reminisce, retrospect, memento
often ['ɔf(tə)n] 词频1
adv. 常常;经常;时常;再三;
💡 十(ten)有八九的(of), 经常的
"Sleep has often been thought of as being in some way analogous to death."
人们常常认为睡眠在某种意义上来说类似死亡。
近义:manyfold, oft, oftentimes, repeatedly, usually, offtimes 反义:infrequently, occasionally, seldom, sometimes
written ['ritn] 词频1
adj. 书面的;写成文字的;明显受到…影响;(感情)全挂在脸上; v. 写( write的过去分词);写信;
"The letter was written in her usual acerbic style."
这封信是用她惯常的尖刻语调写的。

📚 更多「基础口语 1700 句」例句