"as filthy as a pigsty" "a foul pond" "a nasty pigsty of a room"
"a dirty (or lousy) trick" "a filthy traitor"
"had a filthy mouth" "foul language" "smutty jokes"
Telling such filthy stories at dinner that the great industrialist..left the table in high dudgeon.
牛津高阶第八版
美国韦氏词典
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维基百科 (自由的百科全书)