Baseplane
底平面, 基面, 基准平面
🗣️ 情景例句
I had the appointment written on my calendar and was looking forward to the occasion.
我早已把这个约会写在我的日历上而且一直期待着这一时刻。
How do you spend your evenings?
夜生活你都是怎么过的？
The building of skyscrapers in New York began around the year 1900.
在1900年左右，摩天楼开始在纽约兴建。