shǐ / yòng / mó / shā / jī / shí / yí / dìng / yào / dài / hǎo / hù / mù / jìng / hé / kǒu / zhào

使用磨砂机时一定要戴好护目镜和口罩。

Be sure to wear safety goggles and a mask when using a sander.