?
查询技巧:
1、输入单个单词准确查询。
2、使用%模糊查询,匹配任意长度字符:
   %a    以a结尾的单词;
   ab%    以ab开头的单词;
   %ac%    含有ac的单词。
3、使用_模糊查询,匹配单个任意字符:
   _a_    三位且a在中间的单词;
   _ad    三位且ad结尾的单词;
   ac_    三位且ac开头的单词;
   _a    两位且a结尾的单词;
   a_    两位且a开头的单词。
4、带连字符-的单词,需含-字符才能模糊查询,如well-know需输入 well-% 。
5、在手机键盘上,如果g上有%和v上有_,则可长按输入。

scum

英 / skʌm /
美 / skʌm /
n. 浮渣;败类;浮沫;浮垢
v. 去除(浮渣);形成泡沫;生浮皮 变得满是浮渣

过去式:scummed

1. Someone had scrawled "Scum" on his car.
有人已在他的车上涂写了“人渣”字样。
2. Skim the scum off the jam and let it cool.
撇去果酱上的浮沫,让它冷却。
3. She never would have even spoken to scum like him when Mom was alive.
妈妈活着的时候她是绝不会和像他这样令人厌恶的人说话的。
4. I speak to them about life's greatest rewards waiting in the removal of soap scum from the bathtub, which hasn't been properly cleaned since the first snowfall.
我对他们说,除去浴缸里的皂垢是生活最大的回报,因为自从第一场雪以来浴缸就一直没有好好清理过。
5. People think you're scum, not me.
人们会认为你是渣子,而不是我。