Binary trees are represented in the input file as LISP S-expressions having the following form.
在输入LISP的S表达式表示的二叉树具有如下形式.
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一根根光秃秃的树枝似乎在迎着那淡淡的太阳向上伸展,急不可待地要吐出绿叶和花瓣儿。
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万物苏醒,花儿开始绽放,树叶开始变绿,鸟儿在树上歌唱。
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I can fly over the houses, over the trees, and over the hills and far away.
我可以飞过房屋,飞过树木,飞过群山,飞过远方。
中考真题- 2015 包头 阅读A
Any of several similar or related trees, such as the Douglas fir.
枞木类似或相关树木中的任意一种,例如黄杉。
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It's also been used on trees with Dutch elm disease and on artwork affected by mold.
这种药也被用于治疗荷兰榆树病和解决艺术品受到霉菌影响的问题。
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Active rule of cork cambium is different in different trees, so form the many types of bark.
由于木栓形成层活动的规律不同,所以出现有各种各样的树皮。
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I could see trees that were 30m tall, because I was so far away, they looked tiny to me.
我能看到30米高的大树,但因为距离太远,它们看起来很小。
中考真题- 2018 武汉 阅读C
Coal was made by the rocks pressing on trees and plants which died millions of years ago.
煤产生于岩石对数百万年前枯死的树木和其他植物的挤压。
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Why were redwood trees more prominent in the forests of North America millions of years ago?
为什么红杉在数百万年前的北美森林里较常见?
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