I bought acid and went back to my former high school and waited for some of the classmates to come out.

我买了硫酸，回到我先前就读的学校，等我的同学们出来。

youdao

I bought acid and went back to my former college and waited for some of the classmates to come out.

所以我买了硫酸，返回原来的学校，等着他们出现，伺机报复。

youdao

This paper introduce the American New Dimension Plating has used hole purify implement to reclaim chrome acid and improved the former disposal system.

本文简介美国新维电镀公司使用多孔净化器回收铬酸，并对原处理系统进行了改进。

youdao

Russia's Bolshoi Theatre has appointed a former prima ballerina as a temporary replacement for its artistic director who is recovering from an acid attack.

BBC: Bolshoi ballet theatre appoints temporary director