Definition of Ratrac in English:

Ratrac

(also Ratrack)

noun ˈratrak

A tracked vehicle designed for travelling on snow-covered terrain, used especially for compacting snow on a ski slope. [A trademark in the United Kingdom.]

1970s; earliest use found in Country Life. Apparently from German regional (Swiss) Ratrac, trade name, of unknown origin.

(also Ratrack)

nounˈratrak

A tracked vehicle designed for travelling on snow-covered terrain, used especially for compacting snow on a ski slope. [A trademark in the United Kingdom.]

1970s; earliest use found in Country Life. Apparently from German regional (Swiss) Ratrac, trade name, of unknown origin.

词汇	Ratrac
释义	Definition of Ratrac in English: Ratrac (also Ratrack) noun ˈratrak A tracked vehicle designed for travelling on snow-covered terrain, used especially for compacting snow on a ski slope. [A trademark in the United Kingdom.] Origin 1970s; earliest use found in Country Life. Apparently from German regional (Swiss) Ratrac, trade name, of unknown origin. Definition of Ratrac in US English: Ratrac (also Ratrack) nounˈratrak A tracked vehicle designed for travelling on snow-covered terrain, used especially for compacting snow on a ski slope. [A trademark in the United Kingdom.] Origin 1970s; earliest use found in Country Life. Apparently from German regional (Swiss) Ratrac, trade name, of unknown origin.
随便看	line of flight line of force line of force line of latitude line of longitude line of march line of march line of reasoning line of scrimmage line of sight line of sight line of thinking line of thought line of vision line of vision line (of work) line of work line one's pocket line one's pocket line one's pockets line one's pockets/purse with line one's stomach line one's stomach line out line-out