20xx春牛津深圳版英语七下unit5waterppt课件5内容摘要：
d up to 增加，增添 把 ...加到 ...上 合计达到 chemical These chemicals are important for the experiment. chemistry chemist We want to buy chemical material. through ；穿过 The giraffe gets the food through the window through across cross prep. 内部穿过 prep. 外部穿过 v. 横过 can _____the road when the light is green. we went ________the forest. wolf and sheep can39。 t go ______ the bridge together. through across cross cross through across pipe Let the water run through this pipe. valuable ；很有用的 I39。 m sorry I39。 ve already taken up so much of your valuable time. The vase is valuable. value valueless n. 价值 adj. 无价值的；没有用的 bit。阅读剩余 0%
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