1、The extrinsic factors, such as weather conditions, may affect the growth of the plants. (外在因素,如天气条件,可能会影响植物的生长。)
2、Her motivation to exercise is primarily extrinsic, driven by the desire to look good in front of others. (她锻炼的动力主要是外在的,受到想在他人面前好看的欲望驱使。)