Unit Seven: Let Him Go!第七课：让他走！
小狗狗，请让他走。
You can let him go by ball.
你可以让他坐着球走。
You can let him go by car.
你可以让他坐着车走。
You can let him go by fish.
你可以让他坐着鱼走。
You can let him go by bird.
你可以让他坐着鸟走。
You can let him go by mail.
你可以将他邮寄走。
词义解析:
1.little：小
2.please：请
3.let：让
4.mail：邮件
