Level 4 - 3 - Spelling Practices

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(1) n. [脚后跟] back part of the human foot; lower end of a ship's mast

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(2) n. [氢] a nonmetallic univalent element that is normally a colorless and odorless, highly flammable diatomic gas

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(3) n. [冰山] a large mass of ice floating at sea

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(4) a. [侧面的,侧向的] coming from the side; situated at or extending to the side

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(5) a. [致命的] deadly; causing or capable of causing death

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(6) n. [莴苣,生菜] any of various plants of the genus Lactuca, cultivated for their edible leaves

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(7) n. [肢,翼,树枝] arm; leg; any of the main branches arising from the trunk or a bough of a tree

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(8) n. [页边的空白,(湖,池等的)边缘] border; rim; the amount by which one thing is different from another

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(9) n. [流星] any of the small solid extraterrestrial bodies that hit the earth's atmosphere

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(10) n. [形态学,形态论] branch of biology that deals with the structure of animals and plants