北京烤鸭是一个世界有名的菜，它被做在北京，中国的首都
LEVEL 1 Beijing Roast Duck is a world-famous dish，which is cooked in BJ, the capital of China( 定从）
LEVEL 2 Beijing Roast Duck is a world-famous dish cooked in BJ, the capital of China （分词）
当人们庆祝商业成功时，他们经常去QJD饭店 去吃 BRD
When people celebrate the success of the business，
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北京烤鸭是一个世界有名的菜，它被做在北京，中国的首都 LEVEL 1 Beijing Roast Duck is a world-famous dish，which is cooked in BJ, the capital of China( 定从） LEVEL 2 Beijing Roast Duck is a world-famous dish cooked in BJ, the capital of China （分词） 当人们庆祝商业成功时，他们经常去QJD饭店 去吃 BRD When people celebrate the success of the business，