Stop slouching. 不要弯腰驼背。
Head up. 把头抬起来。
Hold it level. 水平的拿着。 Pull your stomach in. 把腹部缩进去。
Sit up. 仰卧起坐。
Duck! 蹲下来! Don't drag your feet. 不要拖着脚走路。
She moves like a turtle. 她的行动缓慢如龟。 She's quick as a bunny. 她动若脱兔。