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1.sandbar n．沙洲(a ridge of sand built up by currents especially in a river or in coastal waters)
例：The new airboat can travel at high speeds undeterred by sandbars.
2.sane a．健全的(mentally sound, rational)；明智的(wise)
詞根記憶：san(健全，健康)+e--健全的
注意：insane(a．瘋狂的)
例：The defendant was judged to be sane and competent to stand trial.// a sane leader英明的領導
3.sanitarfy a．衛(wèi)生的(free from dirt or substances that may cause disease, hygienic);公共衛(wèi)生的
詞根記憶：sanit(=san健全，健康)+ary--與健康有關的--衛(wèi)生的
例：sanitary condition公共衛(wèi)生條件
同根詞：sanitation(n．公共衛(wèi)生，衛(wèi)生設施)
4.saturated a．飽和的：浸透的(made thoroughly wet)
詞根記憶：來自saturate（v.浸透，充滿）
例：The market for video recorders was saturated.//I came in from the rain and took off my saturated clothes.
5.scale n.鱗片；規(guī)模(a relative level or degree)；等級(rank order)
例：Typically reptiles are covered with scales.//The scale of the playboy's spending is $500,000 a year.//There were differences in pay scales that cannot be explained by the human capital theory.
派生詞：scaling(n.縮放比例)
6.scandalize v.使震驚(to shock)；誹謗(to speak falsely or maliciously of)
詞根記憶：scandal(謠言，緋聞)+ize--誹謗
例：They were scandalized by his improper behavior.
同根詞：scandalous(a．可恥的；誹謗性的)
7.tscapegoat n．替罪羊(one that bears the blame for others)
聯想記憶：scape(看作escape逃跑)+goat(羊)--替罪羊
例：The accused was used as a scapegoat.
8.scarce a.缺乏的(not plentiful or abundant)；稀有的(rare)
聯想記憶：scar(傷疤)+ce--有傷疤，不完整的--缺乏的
例：Whenever fuel becomes scarce, it becomes expensive.
派生詞：scarcity(n．缺乏，不足)
n. 環(huán)境衛(wèi)生(衛(wèi)生設備，下水道設備)
