词汇知识
a____________ (n.)the purpose of doing sth.
i____________ (vt.)to contain as a part;to connect closely
l____________ (adj.)living;not dead
w____________ (n.)something that makes you feel surprised with admiration
b____________ (n.)the edge of a steep place
e____________ (n.)the fact of being extinct
b____________ (n.)one of the offices or groups that form part of a large business organization
w____________ (vt.)to use,consume,or spend thoughtlessly or carelessly
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