zài / shí yàn shì / zhōng / wǒ men / xū yào / xiǎo xīn / chǔ lǐ / yì dīng wán / yīn wèi / tā / yì rán在实验室中,我们需要小心处理异丁烷,因为它易燃。In the laboratory, we need to handle isobutane carefully because it is flammable.