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not built next to the rivers but on high terrain in rolling uplands。 最初让我们惊讶的地方在于他们的许多城市不是建在河边,而是在绵延起伏的高地之上。
runoff['r?n?f]n。 决赛;径流;流走的东西
搭配 urban runoff 城市径流
例句 1。 Two types of flow features were seen: those are runoff channels and outflow channels。 一共可以看到两种流动特征:那就是径流渠道和流出渠道。
2。 These scenarios start with planting certain species of plants to treat the pond contaminated by runoff。 这些方案从种植特定的植物开始,以处理被径流污染过的池塘。
salinity[s?'lin?ti]n。 盐分;盐度;海水的高含盐量
搭配 absolute salinity 绝对盐度
例句 Evaporation causes the increase of salinity and results in the scarcity of freshwater。 蒸发导致盐度上升,进而造成了淡水的缺乏。
sap[s?p]n。 树液,汁液;元气
例句 Spartina is particularly tolerant of high salinities for its salt glands on the surface of leaves can remove the salt from the plant sap。 大米草科植物特别能够忍耐高盐度,因为其树叶表面的盐腺可以去除植物液汁中的盐分。
同义 fluid(n。 汁液)
要点 在托福阅读文章中,植物的汁液通常都用sap表示,但sap也可以表示“元气”。
saturate['s???reit]v。 使湿透;使饱和
搭配 saturated zone 饱和带
例句 1。 The total volume of water in the saturated sample must be looked as consisting of water that can; or cannot; drain away。 饱和样本的全部含水量必须被看作含有能排尽的和不能排尽的水。
2。 The ocean can saturate the atmosphere with water。 海洋可以使大气层充满水分。
scarce[skers]a。 缺乏的;稀有的,罕见的
例句 1。 These scarce natural resources are now located in the Guatemalan and Mexican highlands。 如今,这些稀有的自然资源位于危地马拉和墨西哥的高地地区。
2。 Watches and clocks were scarce in the United States and people didn't have chance to own them until the late 1850s。 以前钟表在美国是很少见的,直到19世纪50年代末期,人们才有机会拥有钟表。
要点 scarce在托福阅读文章中主要表示“稀有的”这一含义,而scarce的副词形式scarcely意为“几乎不”,表达否定含义。
scatter['sk?t?r]v。 分散,驱散;撒播
例句 During the midnight on February 8; 1969; a large; bright meteor entered Earth's atmosphere and broke into thousands of pieces
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