Mear
边界
🗣️ 情景例句
What can I do for you, sir?
先生，有什么需要帮忙的吗？
Do I have to make a reconfirmation?
我还要再确认吗？
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。