mǐ / qiān / kè / hé / miǎo / dōu / shì / guó / jì / dān / wèi / zhì / zhōng / de / jī / běn / dān / wèi

米、千克和秒都是国际单位制中的基本单位。

The meter, kilogram, and second are all base units in the International System of Units.