Trigonal
a. 三角的, 三角形的\\n[医] 三角的
🗣️ 情景例句
Carnegie Hall, Lincoln Center.
卡奈基音乐厅， 林肯中心。
I used to work until nearly 6:00 o'clock each day.
我过去每天常工作直到将近6:00点钟。
In this way, he has begun his own private 'telephone' service.
就这样，他开始自己的私人“电话”业务。