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1.softball ˈsɔftbɔːl]
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2.1453 football /ftb l/ n.
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3.softball
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4.&sk-1)push(&s, 1)l=k 1if (l empty(s))pop(&s);h= pop(&s);
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5.How many people play on a softball field?
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6.Seoul səʊl]
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7./lɒs/ l_s_
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8.设R和S分别是字母表∑上的正规式,则有L(R|S)=L(R)∪L(S)
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9.lò vi sóng
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10.A.n = 1, l = 0 ,m = 0 , s = +1/2B.n = 2, l = 1, m = 0 , s = +1/2C.n = 3, l = 2 ,m = 1, s = +1/2D.n =