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儿子又站到了树旁边，他先让儿子背靠着树干站直了， only the snowman accompanies the small tree，父亲带儿子来到了小树下， he let his son stand upright with his back against the tree trunk. then he put the nail in his mouth and bit it with his teeth. then he used the hammer as a ruler to make a
温馨提醒：随时光变迁，文中所陈述观点；准确性、难免有所变动，因此文中观点仅供参考。
