Riemannian
geometry[数]黎曼几何(学)
🗣️ 情景例句
I'm dead tired by quitting time.
下班时，我都累死了。
Today is my birthday.
今天是我的生日。
I tried to wake up my wife by ringing the doorbell,
我按响了门铃，试图唤醒我的妻子，