Septangle
n. 七角形
🗣️ 情景例句
There are three things that have to be done first, Harry.
首先我们必须做三件事， Harry。
The designer is going to create a new type of dress.
服装设计师正在设计新款女装。
riding on its air cushion over a single rail, which it never touches,at speeds up to 300 m.p.h.----the possibilities appear unlimited.
靠气垫在单轨上行驶而不接触轨道，时速可达每小时300英里。气垫船的前途是不可限量的。