快速
讲台
边缘
课堂
platform [ˈplætfɔːrm]
n. 站台；月台；讲台；舞台；平台 v. 把…放在台上；为…设（平）台；（在台上）演讲
例句： Nick finished what he was saying and jumped down from the platform.
句意：尼克讲完后，从讲台上跳了下来。
