名詞 rascal:

1. a deceitful and unreliable scoundrel
   同義詞：rogue, knave, rapscallion, scalawag, scallywag, varlet
2. one who is playfully mischievous
   同義詞：imp, scamp, monkey, rapscallion, scalawag, scallywag

1. If I ever catch the rascal I'll really wallop him!
   我要是逮住這個(gè)流氓，非狠狠揍他一頓不可！
2. She would have married him, but when she learned that he was a rascal, she parted with him.
   她本來會(huì)嫁給他的，但知道他是個(gè)流氓后，她就離開他了。
3. The rascal hectored the boy into taking out all of his money.
   那個(gè)流氓嚇唬小男孩，讓他掏出了所有的錢。
4. The rascal lives on the credulity of the people.
   那個(gè)流氓靠行騙為生。
5. The boy is nothing but a rascal.
   這個(gè)男孩是個(gè)小淘氣。
6. You lucky rascal!
   你這個(gè)幸運(yùn)的家伙！

ras.cal

n.（名詞）
One that is playfully mischievous.
淘氣鬼：調(diào)皮，頑皮之人
An unscrupulous, dishonest person; a scoundrel.
流氓，無賴：不守法，不誠實(shí)之人；惡棍
adj.Archaic （形容詞）【古語】
Made up of, belonging to, or relating to the common people:
平民的：由普通群眾組成的；屬于平民的；與平民有關(guān)的：
例句：
.Nor shall the Rascal Rabble here have Peace.(John Dryden)
.這里的平民百姓也不會(huì)得到安寧.(約翰·德賴登)

來源：
Middle English rascaile [rabble, commoners]
中古英語 rascaile [平民，普通人]
from Old French rascaille
源自 古法語 rascaille
probably from rasque [mud]
可能源自 rasque [泥土]
from Vulgar Latin *r3sic3re [to scrape] * see rash 2
源自 俗拉丁語 *r3sic3re [擦] *參見 rash2

【引伸】
ras.cally
adj.（形容詞）