streamlining

流线型化

strategy, stratification, stratify, stratoscope, stratosphere, stratum, straw, straw poll (also straw vote), straw-coloured, strawberry, strawberry-mark, stray, stray away from, streak, streaker, streaky, stream, stream of consciousness, streamline, streamlined, street, street credibility (also ,street `cred), street value, street-girl (also `street-walker), street-wise, streetcar, strength, strengthen, strenuous, strenuously, streptococcal, streptococcus, streptomycin, stress, stress mark, stressful, stretch, stretch out, stretcher, stretcher-bearer,