Quarternary
[计] 四元的
🗣️ 情景例句
When you learn a new verb, learn its various forms.
学到了新动词时，记住它的各种形式。
May I see your driver's license?
我可以看一下你的驾驶执照吗？
Can you ring me back right away?
你能立刻回个电话吗？