Episternites
背瓣(蝗科产卵器)
🗣️ 情景例句
Which newspaper do you read?
你看哪种报纸？
Which one is more economical?
哪一个是比较经济的？
Good morning, Mr. Zhang. I'm sorry to trouble you.
早上好，张先生。很抱歉打扰您。