cartoon of a boy playing with a truck from http://www.usda.gov/cnpp/KidsPyra/ National Agricultural Library, Agricultural Research Service, U. S. Department of Agriculture<br/>男孩玩玩具卡車<br/>boy、cartoon、child、People、play、toy、toy truck、usda、Verbs<br/>男孩、動畫片、兒童、人、玩、玩具、玩具卡車、USDA、動詞<br/>資料來源：openclipart ( https://openclipart.org/ )