New Words：

kilogram [ˈkɪləɡræm] n. 千克; 公斤
kilogramme [ˈkɪləʊgræm] [英] 同 kilogram
kilo [ˈkiːloʊ] 同 kilogram
gram [ɡræm] n. 克

Sample Sentences：

The baby weighs 8 kilos.
One kilogram equals 1000 grams.
How much is a kilogram of apples?
A football weighs about 400 grams.

weigh [weɪ] v. 称，称……的重量；重，有……重；

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