Baseplane
底平面, 基面, 基準平面
??? 情景例句
I'll find the people to help do it.
我可以找人來幫忙。
We have a toll-free number for customers to call.
我們對顧客提供免費服務電話。
I think we may be able to work together in the future.
我想也許將來我們可以合作。