4only after studies provided evidence of the harmful effects of this program , has it been possible to modify tv programming policies 除非研究提供證據(jù)表明這個節(jié)目的不良影響,否則電視節(jié)目的播放政策不可能改變。
Only after studies provided evidence of the harmful effects of such programs has it been possible to modify tv programming policies 僅僅在研究提供了這些程序有害性影響的證據(jù)以后,修改電視程序的政策才成為可能。
Only after studies provided evidence of the harmful effects of this program , has it been possible to modify tv programming policies 譯文:除非研究提供證據(jù)表明這個節(jié)目有不良影響,否則電視節(jié)目的播放政策不會改變。
Only after studies provided evidence of the harmful effects of such programs has it been possible to modify tv programming policies 只有在研究提供出這些節(jié)目產(chǎn)生有不良影響的證據(jù)后,才有可能更改電視節(jié)目播放的政策。
Only after studies provided evidence of the harmful effects of such programs has it been possible to modify tv programming policies 只有在經(jīng)過研究分析后才能得到這些程序已經(jīng)可能修改電視程序設計政策的有害影響的證據(jù)。