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[ar:]

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[by:听力课堂～www.tingclass.net]

[00:02]combine (使)结合，联合

[00:14]associate (使)联系，(使)联合

[00:29]blend (使)混和，(使)混杂

[00:40]compound 化合物，复合物

[00:53]barely 仅仅，勉强

[01:06]rarely 很少，难得

[01:15]