试题题干
Translate the following sentence into Chinese.
Research in industrialized countries has shown the subtle methods used to encourage young girls to smoke.
参考答案
试题解析
考点：industrialized countries 工业化国家；subtle methods 巧妙的方法。
句子结构：句子主干为Research has shown the subtle methods，in industrialized countries修饰research，used to encourage young girls to smoke修饰methods。