full speed
full speed — idiom
1. as fast as a person, vehicle, or machine can go; at the highest possible rate of
as fast as a person, vehicle, or machine can go; at the highest possible rate of movement or work
The rescue boat raced at full speed toward the sinking fishing boat.
at full speed
Lakshmi ran at full speed to catch the last bus home.
The factory machines have been running at full speed since dawn.
At full speed, the old van shook so hard the mirrors fell off.
Cyrus typed at full speed to finish the report before noon.
- at top speed
essentially the same meaning; slightly more formal and usually about physical movement
- flat out
more informal; often used for working hard rather than just moving fast
- all out
emphasises maximum effort; can be used for non-speed contexts like studying or fundraising
- at a crawl
moving extremely slowly
- at a snail's pace
very slow; informal and often used for complaining about slow progress
文法句型
at full speed
用法筆記
Almost always used with the preposition 'at'. The phrase 'full speed ahead' is a naval command meaning 'go forward as fast as possible' and is also used figuratively for any project moving forward without pause.