“轻摇”的英语

他坐在椅中轻摇入睡.He sat rocking himself to sleep in his chair.小狗一看到主人就轻摇起尾巴.The puppy frisked its tail when It'saw its master.现在自动售货机每次都需要轻摇一下.The vending machine needs a jog every now and then....