单词	make sad/unhappy
释义	请查阅词条：unhappy
随便看	be/become invisible be/become lathered be/become lathered be bedevilled be bedevilled by be beforehand with be beforehand with be behind be beholden for be beholden to be believable/credible be believed be bemired be bemired be beneficial be beneficial to be bent on be bequeathed be bereaved be bereaved be bereft of be beset be beset with be beset with be beset with/by 什么是黑客? 什么是"黑客"? 什么是黑客？什么是黑洞? 什么是黑洞？什么是默桑艺术？什么是鼓室？什么是鼻屎？什么是龙卷风? 什么木材最适宜做屠夫的砧板？ Hauptreduzierventil Hauptregel Hauptregelkreis Hauptregelstange Hauptregister Hauptregler Hauptrelais Hauptrichtung Hauptrohr Hauptrolle