Hmalouphylline
二甲胺基氧孕甾烷基乙酰胺
🗣️ 情景例句
Dad.
爸爸。
What will you do to help protect our environment from being seriously polluted?
你将为帮助保护我们的环境免遭到污染做些什么呢？
A man lived in a tall building in the city of Moscow. He liked living there.
有一个人住在莫斯科城的高楼里。 他喜欢住那儿。