One of their informers was working under the code name Czerny.他们的一名线人用车尔尼作化名。Are you telling me that you'vegot your own little nest of informers in the Police Department?你是说你在警察局有一帮通风报信的？The service had planted its ...
They cost nine pounds new, three pounds secondhand.新的9英镑，旧的3英镑。Others donated secondhand clothes.其他人捐赠了一些旧衣服。I bought a secondhand chair which is as good as new.我买了一把二手货椅子,它如同新的一样....
Polish up your writing skills on a one-week professional course.上为期一周的专业课，提高你的写作技能。I'm going to New York, so I must polish up my English.我要去纽约, 因此我必须提高英语水平.You've got to polish up on your idiomatic expressions....