Level 1 - 4 - Spelling Practices

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(1) a. [高低不平的,崎岖的] uneven; rough; very difficult

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(2) v. [丢弃,打碎] throw away; discard; break down into parts for disposal or salvage

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(3) n. [海港,港口] a sheltered port where ships can take on or discharge cargo

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(4) v. [剥落,脱壳] remove from the husk; separate kernels from cob; defeat decisively; hit the pitches of hard and regularly

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(5) n. [独身] state of being alone; seclusion; lonely or secluded place

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(6) a. [顽固的,固执的] unreasonably, often perversely unyielding; persistent; difficult to treat

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(7) n. [亚种] a taxonomic group that is a division of a species

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(8) n. [合成材料,化合物] [___] chemical compound or material; compound made artificially by chemical reactions

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(9) ad. [因此,从而] thus; accordingly; by that means; because of that

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(10) a. [地下的,地面下的] under the level of the ground; buried