shí / yàn / shì / bì / xū / bǎ / sì / lǜ / huà / tàn / mì / fēng / bǎo / cún / bìng / àn / guī / dìng / chǔ / lǐ

实验室必须把四氯化碳密封保存，并按规定处理。

The laboratory must keep carbon tetrachloride sealed and dispose of it according to regulations.