lowlife: n. 卑劣人；下层阶级的人；来历不明的男人。 复数 lowlifes
"And now this lowlife wants to kill my husband." （但是现在这个卑鄙的家伙想杀了我的丈夫）----美剧《绝望的主妇》
adj. 奸诈的；不道德的；堕落的；道德败坏的；粗野的；粗俗的；下流的；不文雅的
"He's a lowlife dealer. He operates a couple of blocks." （他是个卑微的商人，管理着几个街区）----《自豪与荣耀》
bum: to ask someone for something such as money, food, or cigarettes 讨，乞讨
She bummed a little cash off me. 她向我讨了一点钱。----有道英语
customary: something that is customary is normal because it is the way something is usually done 风俗的，惯例的，合乎习俗的
"It is customary to accompany a proposal with gifts." （按习俗求婚时应该准备礼品）----《波斯王子：时之刃》
That's all for today
May 23, 2018. XOXO