Tridactyle
[医]（拉tridactylus）三指的, 三趾的
🗣️ 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。
I got your back.
放心！
The reason lies in its gravity.
其原因在于月球的重力。