Sometimes,pressure is motivity to me. 某些时候，我觉得压力是一种动力。
Cars and trucks can use the piles that can be changed quickly as motivity. 汽车和卡车可以迅速替换的电池组作动力。
Creative thought is the motivity of the development of fabric material, and creative designing is the key to success. 创新思维是面料进步的原动力，创造设计是服装面料成功的法宝。
The movements of qi are the motivity for the transportation, and distribution of body fluid, and the excretion of sweat and urine. 气的运动是津液运行分布和汗尿液排泄的原动力。
美
[moʊ'tɪvətɪ]
