When you recollect something, you can bring it back into your mind — a name, a face, a day, a thing someone said. People often use it when the memory is not sitting right at the front of their head; they have to reach for it. “I don’t recollect his name” is a polite, slightly careful way of saying you cannot remember.

When you recollect something當你 recollect 某件事 you can bring it back into your mind就是把它重新想起來 a name, a face, a day, a thing someone said像是一個名字、一張臉、某一天、或某人說過的話 People often use it when the memory is not sitting right at the front of their head人們常在記憶不是馬上浮現在腦海最前面時使用這個詞 they have to reach for it他們得努力去想才行 "I don't recollect his name" is a polite, slightly careful way of saying you cannot remember「I don't recollect his name」是一種比較客氣、謹慎的說法，意思是你想不起來

It is more formal than remember, and you hear it more in writing and from older speakers than in quick chat.

It is more formal than remember它比 remember 更正式 and you hear it more in writing and from older speakers你比較會在文章裡、或從年長者口中聽到它 than in quick chat而不是在隨口聊天時

You recollect the past. You do not recollect to lock the door — that job belongs to remember.

You recollect the past你 recollect 的是過去的事 You do not recollect to lock the door你不會用 recollect 來說記得去鎖門 that job belongs to remember那是 remember 的工作

Though actually, even native speakers mix the two, and in many sentences remember would sit just as well.

Though actually不過其實 even native speakers mix the two連母語人士都會把兩個詞混著用 and in many sentences remember would sit just as well而且在很多句子裡用 remember 也一樣通