Actually,did you know that it’s been found in laboratory tes

Actually,did you know that it’s been found in laboratory testing that some types of oil are
really bad for us 分析这句话

翻译：事实上,你知道吗,实验发现一些油类是对我们非常不宜的.
第一that引导的宾语从句指 it’s been found in laboratory testing that some types of oil are really bad for us
第二个that引导的从句some types of oil are really bad for us 这一事实指的是前面句子中 it's当中的it
从句套从句 剥洋葱一层层分析咯

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