我要提出警告,别介入得太深。
When one of you falls down, he falls for those behind him, a caution against the stumbling stone.当你们中的一个人跌倒时,他是为后面的人跌倒,使他们小心避开绊脚的石头。
But the scientists caution against use of this type of test, at least in the near term.但是科学家警告使用这种类型的测试,至少在短期内。