Hái / zi / men / zài / dòng / wù / yuán / lǐ / guān / chá / dà / xiàng / de / xiàng / bí / jué / de / fēi / cháng / yǒu / qù孩子们在动物园里观察大象的象鼻,觉得非常有趣。The children observed the elephant's trunk at the zoo and found it very interesting.