streak

n.纹理，条纹

strapped, strapping, strata, stratagem, strategic, strategically, strategist, strategy, stratification, stratify, stratoscope, stratosphere, stratum, straw, straw poll (also straw vote), straw-coloured, strawberry, strawberry-mark, stray, stray away from, streaker, streaky, stream, stream of consciousness, streamline, streamlined, streamlining, street, street credibility (also ,street `cred), street value, street-girl (also `street-walker), street-wise, streetcar, strength, strengthen, strenuous, strenuously, streptococcal, streptococcus, streptomycin,