we finally gave up
我们最终放弃了
以上为机器翻译结果，长、整句建议使用 人工翻译 。
We finally gave up and just used the internal mic of the tape recorder.
最后我们放弃了，只能使用录音机的内置麦克。
youdao
After fifty years of planning we finally gave it up as a losing enterprise.
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