scum trough是什么意思 scum trough在线中文翻译

scum trough是什么意思，scum trough在线翻译，scum trough中文意思，scum trough的中文翻译，scum trough发音，scum trough例句，scum trough词组短语，scum trough怎么翻译，单词scum trough的意思