A high-speed vehicle or piece of equipment moves or operates very quickly.
Japan's high-speed trains travel a long way in a short time.
日本高速列车可以在短时间内行驶很远的路程。
A high-speed accident happens when the vehicles involved are travelling very fast.
They were killed in a high-speed crash in a tunnel in Paris.
他们在一起由高速行驶引发的巴黎隧道撞车事故中丧生。
A high-speed Internet connection allows users to access websites very quickly.
Most of our customers have now upgraded to a high-speed broadband connection.
我们大多数的客户现已升级至高速宽带连接。