shí / yàn / zhōng / wǒ / men / yòng / zhǐ / shì / jì / lái / jiǎn / cè / róng / yè / shì / bú / shì / ruò / jiǎn

实验中，我们用指示剂来检测溶液是不是弱碱。

In the experiment, we used an indicator to test whether the solution was a weak base.