我有4本书和2本杂志要借 his previous attempts had been unsuccessful.他以前的尝试没有成功 i think i've filled in everything correctly.我想各项都填对了 .
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他以前的尝试没有成功
His previous attempts were unsuccessful
以上为机器翻译结果，长、整句建议使用 人工翻译 。
他以前的尝试没有成功。
His previous attempts had been unsuccessful.
youdao
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