反作用力 Save Sign in to save words fǎnzuòyònglì ㄈㄢˇ ㄗㄨㄛˋ ㄩㄥˋ ㄌㄧˋ reaction force physics Character by character 反(fǎn)contrary 作(zuò)do 用(yòng)use 力(lì)surname Li A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0