huà / xué / shí / yàn / zhōng / wǒ / men / yòng / fēn / tài / jiǎn / yàn / róng / yè / shì / fǒu / chéng / jiǎn / xìng化学实验中,我们用酚酞检验溶液是否呈碱性。In the chemistry experiment, we used phenolphthalein to test whether the solution was alkaline.