Seragon
血清促性腺激素
🗣️ 情景例句
Would you mind opening your suitcase?
请把您的箱子打开，好吗？
What platform does the train leave from?
这班车从哪个站台开出呢？
The house was dirty. They hadn't cleaned it for weeks.
房子很脏，他们好几个星期没打扫了。