between 测验

[bɪˈtwiːn]

[bəˈtwin]

介在...之间

问题 1 :

If the police at the G20 protests were pumped-up, testerical, itching for a fight, it was partly because their commanding officers have spent years blurring the distinction between peaceful campaigners and terrorists.

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between

问题 2 :

The voltage between the wires is too low to produce a spark.

betweens
between

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