Planet x
未知行星；冥外行星
🧩 词语组成解析
🗣️ 情景例句
Sure. Would you please sign your name on the back, sir, with your passport number?
每问题。先生，请您在支票背后签上名字和护照号码。
How much will it cost?
这种商品成本价是多少？
I want something to eat.
我想吃点东西。