词汇 | often |
词根词缀 | 词源: c.1300, extended form of oft, originally before vowels and h-, probably by infl. of M.E. selden "seldom." In common use from 16c., replacing oft. 词根记忆: ad.常常,经常,通常They often entertained their friends at weekends.他们常在周末招待朋友. |
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