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Many a worker and engineer has succeeded in the experiment.
在这次试验中，许多工人和工程师取得了成功。
youdao
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Formerly a worker himself, he is now an engineer.
他过去是工人，现在是一名工程师了。
youdao
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Formerly a worker himself, he is now an engineer.
过去他是工人，现在是工程师了。
youdao
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Formerly a worker himself, he is now an engineer.
过去他是工人，现在是工程师了。
youdao