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1·The dog's tail is wagging happily.

狗的尾巴正欢快地摇着。youdao

2·My sister's birthday is next month.

我姐姐的生日在下个月。youdao

3·The sun's rays are warm and gentle.

太阳的光线温暖而柔和。youdao

4·The book's cover is very attractive.

这本书的封面很吸引人。youdao

5·The flower's fragrance fills the air.

空气中弥漫着花朵的芬芳。youdao

6·The child's laughter is so sweet.

孩子的笑声真甜美。youdao

7·Our friend's party is going to be fun.

我们朋友的派对会很有趣。youdao

8·The tree's leaves turn yellow in autumn.

秋天，树的叶子变黄了。youdao

9·The cat's eyes are very bright at night.

猫的眼睛在晚上很明亮。youdao

10·The teacher's advice is very helpful.

老师的建议很有帮助。youdao

(1)s waven. 地震横波（S波）

(1)protein s[血液学]蛋白S（依赖维生素K的血浆蛋白，作为一种辅助因子，激活蛋白C，抑制血液凝固）